Home / 90,829.61-136,266.32-28,500.11

Finding the Fourth Proportional to 90,829.61, 136,266.32 and 28,500.11

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Solution

The fourth proportional to 90,829.61, 136,266.32 and 28,500.11 is: 42,757.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,829.61 : 136,266.32 = 28,500.11 : x
  2. Step 2: Convert to fraction form
    90,829.61/136,266.32 = 28,500.11/x
  3. Step 3: Cross multiply
    90,829.61x = 136,266.32 × 28,500.11
  4. Step 4: Simplify right side
    90,829.61x = 3,883,605,109.30
  5. Step 5: Solve for x
    x = 3,883,605,109.30/90,829.61
  6. Step 6: Final answer
    x = 42,757.04

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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.