Home / 64,266.78-88,691.55-40,384.62

Finding the Fourth Proportional to 64,266.78, 88,691.55 and 40,384.62

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Solution

The fourth proportional to 64,266.78, 88,691.55 and 40,384.62 is: 55,732.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,266.78 : 88,691.55 = 40,384.62 : x
  2. Step 2: Convert to fraction form
    64,266.78/88,691.55 = 40,384.62/x
  3. Step 3: Cross multiply
    64,266.78x = 88,691.55 × 40,384.62
  4. Step 4: Simplify right side
    64,266.78x = 3,581,774,543.96
  5. Step 5: Solve for x
    x = 3,581,774,543.96/64,266.78
  6. Step 6: Final answer
    x = 55,732.91

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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.