Home / 87,851.71-121,235.34-47,565.46

Finding the Fourth Proportional to 87,851.71, 121,235.34 and 47,565.46

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Solution

The fourth proportional to 87,851.71, 121,235.34 and 47,565.46 is: 65,640.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,851.71 : 121,235.34 = 47,565.46 : x
  2. Step 2: Convert to fraction form
    87,851.71/121,235.34 = 47,565.46/x
  3. Step 3: Cross multiply
    87,851.71x = 121,235.34 × 47,565.46
  4. Step 4: Simplify right side
    87,851.71x = 5,766,614,715.36
  5. Step 5: Solve for x
    x = 5,766,614,715.36/87,851.71
  6. Step 6: Final answer
    x = 65,640.32

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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.