Home / 87,741.91-121,083.48-47,455.72

Finding the Fourth Proportional to 87,741.91, 121,083.48 and 47,455.72

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Solution

The fourth proportional to 87,741.91, 121,083.48 and 47,455.72 is: 65,488.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,741.91 : 121,083.48 = 47,455.72 : x
  2. Step 2: Convert to fraction form
    87,741.91/121,083.48 = 47,455.72/x
  3. Step 3: Cross multiply
    87,741.91x = 121,083.48 × 47,455.72
  4. Step 4: Simplify right side
    87,741.91x = 5,746,103,723.51
  5. Step 5: Solve for x
    x = 5,746,103,723.51/87,741.91
  6. Step 6: Final answer
    x = 65,488.70

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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.