Home / 87,917.40-121,325.85-47,632.19

Finding the Fourth Proportional to 87,917.40, 121,325.85 and 47,632.19

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Solution

The fourth proportional to 87,917.40, 121,325.85 and 47,632.19 is: 65,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,917.40 : 121,325.85 = 47,632.19 : x
  2. Step 2: Convert to fraction form
    87,917.40/121,325.85 = 47,632.19/x
  3. Step 3: Cross multiply
    87,917.40x = 121,325.85 × 47,632.19
  4. Step 4: Simplify right side
    87,917.40x = 5,779,015,332.48
  5. Step 5: Solve for x
    x = 5,779,015,332.48/87,917.40
  6. Step 6: Final answer
    x = 65,732.33

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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.