Home / 92,217.20-138,325.80-57,225.20

Finding the Fourth Proportional to 92,217.20, 138,325.80 and 57,225.20

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Solution

The fourth proportional to 92,217.20, 138,325.80 and 57,225.20 is: 85,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,217.20 : 138,325.80 = 57,225.20 : x
  2. Step 2: Convert to fraction form
    92,217.20/138,325.80 = 57,225.20/x
  3. Step 3: Cross multiply
    92,217.20x = 138,325.80 × 57,225.20
  4. Step 4: Simplify right side
    92,217.20x = 7,915,721,570.16
  5. Step 5: Solve for x
    x = 7,915,721,570.16/92,217.20
  6. Step 6: Final answer
    x = 85,837.80

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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.