Home / 87,918.11-121,327.02-47,632.15

Finding the Fourth Proportional to 87,918.11, 121,327.02 and 47,632.15

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Solution

The fourth proportional to 87,918.11, 121,327.02 and 47,632.15 is: 65,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,918.11 : 121,327.02 = 47,632.15 : x
  2. Step 2: Convert to fraction form
    87,918.11/121,327.02 = 47,632.15/x
  3. Step 3: Cross multiply
    87,918.11x = 121,327.02 × 47,632.15
  4. Step 4: Simplify right side
    87,918.11x = 5,779,066,815.69
  5. Step 5: Solve for x
    x = 5,779,066,815.69/87,918.11
  6. Step 6: Final answer
    x = 65,732.38

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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.