Home / 92,448.40-138,561.20-42,459.52

Finding the Fourth Proportional to 92,448.40, 138,561.20 and 42,459.52

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Solution

The fourth proportional to 92,448.40, 138,561.20 and 42,459.52 is: 63,638.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,448.40 : 138,561.20 = 42,459.52 : x
  2. Step 2: Convert to fraction form
    92,448.40/138,561.20 = 42,459.52/x
  3. Step 3: Cross multiply
    92,448.40x = 138,561.20 × 42,459.52
  4. Step 4: Simplify right side
    92,448.40x = 5,883,242,042.62
  5. Step 5: Solve for x
    x = 5,883,242,042.62/92,448.40
  6. Step 6: Final answer
    x = 63,638.12

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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.