Home / 88,166.27-121,665.85-47,878.90

Finding the Fourth Proportional to 88,166.27, 121,665.85 and 47,878.90

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Solution

The fourth proportional to 88,166.27, 121,665.85 and 47,878.90 is: 66,070.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,166.27 : 121,665.85 = 47,878.90 : x
  2. Step 2: Convert to fraction form
    88,166.27/121,665.85 = 47,878.90/x
  3. Step 3: Cross multiply
    88,166.27x = 121,665.85 × 47,878.90
  4. Step 4: Simplify right side
    88,166.27x = 5,825,226,641.70
  5. Step 5: Solve for x
    x = 5,825,226,641.70/88,166.27
  6. Step 6: Final answer
    x = 66,070.92

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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.