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Finding the Fourth Proportional to 72,686.34, 109,029.51 and 22,766.85

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Solution

The fourth proportional to 72,686.34, 109,029.51 and 22,766.85 is: 34,150.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,686.34 : 109,029.51 = 22,766.85 : x
  2. Step 2: Convert to fraction form
    72,686.34/109,029.51 = 22,766.85/x
  3. Step 3: Cross multiply
    72,686.34x = 109,029.51 × 22,766.85
  4. Step 4: Simplify right side
    72,686.34x = 2,482,258,499.74
  5. Step 5: Solve for x
    x = 2,482,258,499.74/72,686.34
  6. Step 6: Final answer
    x = 34,150.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.