Home / 40,962.20-61,443.30-28,455.80

Finding the Fourth Proportional to 40,962.20, 61,443.30 and 28,455.80

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Solution

The fourth proportional to 40,962.20, 61,443.30 and 28,455.80 is: 42,683.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,962.20 : 61,443.30 = 28,455.80 : x
  2. Step 2: Convert to fraction form
    40,962.20/61,443.30 = 28,455.80/x
  3. Step 3: Cross multiply
    40,962.20x = 61,443.30 × 28,455.80
  4. Step 4: Simplify right side
    40,962.20x = 1,748,418,256.14
  5. Step 5: Solve for x
    x = 1,748,418,256.14/40,962.20
  6. Step 6: Final answer
    x = 42,683.70

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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.