Home / 87,885.29-121,281.09-47,598.12

Finding the Fourth Proportional to 87,885.29, 121,281.09 and 47,598.12

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Solution

The fourth proportional to 87,885.29, 121,281.09 and 47,598.12 is: 65,685.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,885.29 : 121,281.09 = 47,598.12 : x
  2. Step 2: Convert to fraction form
    87,885.29/121,281.09 = 47,598.12/x
  3. Step 3: Cross multiply
    87,885.29x = 121,281.09 × 47,598.12
  4. Step 4: Simplify right side
    87,885.29x = 5,772,752,151.86
  5. Step 5: Solve for x
    x = 5,772,752,151.86/87,885.29
  6. Step 6: Final answer
    x = 65,685.08

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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.