Home / 87,800.75-121,164.01-47,513.58

Finding the Fourth Proportional to 87,800.75, 121,164.01 and 47,513.58

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Solution

The fourth proportional to 87,800.75, 121,164.01 and 47,513.58 is: 65,568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,800.75 : 121,164.01 = 47,513.58 : x
  2. Step 2: Convert to fraction form
    87,800.75/121,164.01 = 47,513.58/x
  3. Step 3: Cross multiply
    87,800.75x = 121,164.01 × 47,513.58
  4. Step 4: Simplify right side
    87,800.75x = 5,756,935,882.26
  5. Step 5: Solve for x
    x = 5,756,935,882.26/87,800.75
  6. Step 6: Final answer
    x = 65,568.19

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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.