Home / 66,566.68-91,861.88-42,693.29

Finding the Fourth Proportional to 66,566.68, 91,861.88 and 42,693.29

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Solution

The fourth proportional to 66,566.68, 91,861.88 and 42,693.29 is: 58,916.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,566.68 : 91,861.88 = 42,693.29 : x
  2. Step 2: Convert to fraction form
    66,566.68/91,861.88 = 42,693.29/x
  3. Step 3: Cross multiply
    66,566.68x = 91,861.88 × 42,693.29
  4. Step 4: Simplify right side
    66,566.68x = 3,921,885,882.79
  5. Step 5: Solve for x
    x = 3,921,885,882.79/66,566.68
  6. Step 6: Final answer
    x = 58,916.65

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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.