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Finding the Fourth Proportional to 77,737.37, 107,279.65 and 43,747.07

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Solution

The fourth proportional to 77,737.37, 107,279.65 and 43,747.07 is: 60,372.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,737.37 : 107,279.65 = 43,747.07 : x
  2. Step 2: Convert to fraction form
    77,737.37/107,279.65 = 43,747.07/x
  3. Step 3: Cross multiply
    77,737.37x = 107,279.65 × 43,747.07
  4. Step 4: Simplify right side
    77,737.37x = 4,693,170,434.93
  5. Step 5: Solve for x
    x = 4,693,170,434.93/77,737.37
  6. Step 6: Final answer
    x = 60,372.13

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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.