Home / 87,047,643.29-120,125,746.98-47,888,579.66

Finding the Fourth Proportional to 87,047,643.29, 120,125,746.98 and 47,888,579.66

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Solution

The fourth proportional to 87,047,643.29, 120,125,746.98 and 47,888,579.66 is: 66,086,239.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,047,643.29 : 120,125,746.98 = 47,888,579.66 : x
  2. Step 2: Convert to fraction form
    87,047,643.29/120,125,746.98 = 47,888,579.66/x
  3. Step 3: Cross multiply
    87,047,643.29x = 120,125,746.98 × 47,888,579.66
  4. Step 4: Simplify right side
    87,047,643.29x = 5,752,651,402,868,106
  5. Step 5: Solve for x
    x = 5,752,651,402,868,106/87,047,643.29
  6. Step 6: Final answer
    x = 66,086,239.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.