Home / 90,829.26-136,266.93-28,500.30

Finding the Fourth Proportional to 90,829.26, 136,266.93 and 28,500.30

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Solution

The fourth proportional to 90,829.26, 136,266.93 and 28,500.30 is: 42,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,829.26 : 136,266.93 = 28,500.30 : x
  2. Step 2: Convert to fraction form
    90,829.26/136,266.93 = 28,500.30/x
  3. Step 3: Cross multiply
    90,829.26x = 136,266.93 × 28,500.30
  4. Step 4: Simplify right side
    90,829.26x = 3,883,648,385.08
  5. Step 5: Solve for x
    x = 3,883,648,385.08/90,829.26
  6. Step 6: Final answer
    x = 42,757.68

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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.