Home / 87,746.13-121,086.77-49,506.71

Finding the Fourth Proportional to 87,746.13, 121,086.77 and 49,506.71

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Solution

The fourth proportional to 87,746.13, 121,086.77 and 49,506.71 is: 68,317.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,746.13 : 121,086.77 = 49,506.71 : x
  2. Step 2: Convert to fraction form
    87,746.13/121,086.77 = 49,506.71/x
  3. Step 3: Cross multiply
    87,746.13x = 121,086.77 × 49,506.71
  4. Step 4: Simplify right side
    87,746.13x = 5,994,606,754.26
  5. Step 5: Solve for x
    x = 5,994,606,754.26/87,746.13
  6. Step 6: Final answer
    x = 68,317.62

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1.5x scale

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.