Home / 88,125.72-121,613.82-47,839.56

Finding the Fourth Proportional to 88,125.72, 121,613.82 and 47,839.56

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Solution

The fourth proportional to 88,125.72, 121,613.82 and 47,839.56 is: 66,018.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,125.72 : 121,613.82 = 47,839.56 : x
  2. Step 2: Convert to fraction form
    88,125.72/121,613.82 = 47,839.56/x
  3. Step 3: Cross multiply
    88,125.72x = 121,613.82 × 47,839.56
  4. Step 4: Simplify right side
    88,125.72x = 5,817,951,638.72
  5. Step 5: Solve for x
    x = 5,817,951,638.72/88,125.72
  6. Step 6: Final answer
    x = 66,018.77

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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.