Home / 61,312.90-84,642.42-40,124.53

Finding the Fourth Proportional to 61,312.90, 84,642.42 and 40,124.53

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Solution

The fourth proportional to 61,312.90, 84,642.42 and 40,124.53 is: 55,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,312.90 : 84,642.42 = 40,124.53 : x
  2. Step 2: Convert to fraction form
    61,312.90/84,642.42 = 40,124.53/x
  3. Step 3: Cross multiply
    61,312.90x = 84,642.42 × 40,124.53
  4. Step 4: Simplify right side
    61,312.90x = 3,396,237,320.56
  5. Step 5: Solve for x
    x = 3,396,237,320.56/61,312.90
  6. Step 6: Final answer
    x = 55,391.89

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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.