Home / 88,150.40-121,617.15-56,337.92

Finding the Fourth Proportional to 88,150.40, 121,617.15 and 56,337.92

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Solution

The fourth proportional to 88,150.40, 121,617.15 and 56,337.92 is: 77,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,150.40 : 121,617.15 = 56,337.92 : x
  2. Step 2: Convert to fraction form
    88,150.40/121,617.15 = 56,337.92/x
  3. Step 3: Cross multiply
    88,150.40x = 121,617.15 × 56,337.92
  4. Step 4: Simplify right side
    88,150.40x = 6,851,657,267.33
  5. Step 5: Solve for x
    x = 6,851,657,267.33/88,150.40
  6. Step 6: Final answer
    x = 77,726.90

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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.