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Finding the Fourth Proportional to 79,902.86, 110,232.41 and 56,045.12

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Solution

The fourth proportional to 79,902.86, 110,232.41 and 56,045.12 is: 77,318.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,902.86 : 110,232.41 = 56,045.12 : x
  2. Step 2: Convert to fraction form
    79,902.86/110,232.41 = 56,045.12/x
  3. Step 3: Cross multiply
    79,902.86x = 110,232.41 × 56,045.12
  4. Step 4: Simplify right side
    79,902.86x = 6,177,988,641.69
  5. Step 5: Solve for x
    x = 6,177,988,641.69/79,902.86
  6. Step 6: Final answer
    x = 77,318.74

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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.