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Finding the Fourth Proportional to 71,305.86, 106,927.20 and 38,019.72

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Solution

The fourth proportional to 71,305.86, 106,927.20 and 38,019.72 is: 57,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,305.86 : 106,927.20 = 38,019.72 : x
  2. Step 2: Convert to fraction form
    71,305.86/106,927.20 = 38,019.72/x
  3. Step 3: Cross multiply
    71,305.86x = 106,927.20 × 38,019.72
  4. Step 4: Simplify right side
    71,305.86x = 4,065,342,204.38
  5. Step 5: Solve for x
    x = 4,065,342,204.38/71,305.86
  6. Step 6: Final answer
    x = 57,012.74

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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.