Home / 61,311.90-84,641.04-40,123.53

Finding the Fourth Proportional to 61,311.90, 84,641.04 and 40,123.53

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Solution

The fourth proportional to 61,311.90, 84,641.04 and 40,123.53 is: 55,390.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,311.90 : 84,641.04 = 40,123.53 : x
  2. Step 2: Convert to fraction form
    61,311.90/84,641.04 = 40,123.53/x
  3. Step 3: Cross multiply
    61,311.90x = 84,641.04 × 40,123.53
  4. Step 4: Simplify right side
    61,311.90x = 3,396,097,307.67
  5. Step 5: Solve for x
    x = 3,396,097,307.67/61,311.90
  6. Step 6: Final answer
    x = 55,390.51

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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.