Home / 61,916.43-85,476.15-39,278.55

Finding the Fourth Proportional to 61,916.43, 85,476.15 and 39,278.55

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Solution

The fourth proportional to 61,916.43, 85,476.15 and 39,278.55 is: 54,224.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,916.43 : 85,476.15 = 39,278.55 : x
  2. Step 2: Convert to fraction form
    61,916.43/85,476.15 = 39,278.55/x
  3. Step 3: Cross multiply
    61,916.43x = 85,476.15 × 39,278.55
  4. Step 4: Simplify right side
    61,916.43x = 3,357,379,231.58
  5. Step 5: Solve for x
    x = 3,357,379,231.58/61,916.43
  6. Step 6: Final answer
    x = 54,224.37

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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.