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Finding the Fourth Proportional to 52,331.86, 72,178.86 and 40,230.46

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Solution

The fourth proportional to 52,331.86, 72,178.86 and 40,230.46 is: 55,487.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,331.86 : 72,178.86 = 40,230.46 : x
  2. Step 2: Convert to fraction form
    52,331.86/72,178.86 = 40,230.46/x
  3. Step 3: Cross multiply
    52,331.86x = 72,178.86 × 40,230.46
  4. Step 4: Simplify right side
    52,331.86x = 2,903,788,740.08
  5. Step 5: Solve for x
    x = 2,903,788,740.08/52,331.86
  6. Step 6: Final answer
    x = 55,487.97

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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.