Home / 68,432.24-102,648.26-21,681.47

Finding the Fourth Proportional to 68,432.24, 102,648.26 and 21,681.47

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Solution

The fourth proportional to 68,432.24, 102,648.26 and 21,681.47 is: 32,522.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,432.24 : 102,648.26 = 21,681.47 : x
  2. Step 2: Convert to fraction form
    68,432.24/102,648.26 = 21,681.47/x
  3. Step 3: Cross multiply
    68,432.24x = 102,648.26 × 21,681.47
  4. Step 4: Simplify right side
    68,432.24x = 2,225,565,480.57
  5. Step 5: Solve for x
    x = 2,225,565,480.57/68,432.24
  6. Step 6: Final answer
    x = 32,522.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.