Home / 61,680.47-85,121.11-37,802.53

Finding the Fourth Proportional to 61,680.47, 85,121.11 and 37,802.53

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Solution

The fourth proportional to 61,680.47, 85,121.11 and 37,802.53 is: 52,168.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,680.47 : 85,121.11 = 37,802.53 : x
  2. Step 2: Convert to fraction form
    61,680.47/85,121.11 = 37,802.53/x
  3. Step 3: Cross multiply
    61,680.47x = 85,121.11 × 37,802.53
  4. Step 4: Simplify right side
    61,680.47x = 3,217,793,314.41
  5. Step 5: Solve for x
    x = 3,217,793,314.41/61,680.47
  6. Step 6: Final answer
    x = 52,168.75

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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.