Home / 108,581.60-162,829.20-38,424.80

Finding the Fourth Proportional to 108,581.60, 162,829.20 and 38,424.80

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Solution

The fourth proportional to 108,581.60, 162,829.20 and 38,424.80 is: 57,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,581.60 : 162,829.20 = 38,424.80 : x
  2. Step 2: Convert to fraction form
    108,581.60/162,829.20 = 38,424.80/x
  3. Step 3: Cross multiply
    108,581.60x = 162,829.20 × 38,424.80
  4. Step 4: Simplify right side
    108,581.60x = 6,256,679,444.16
  5. Step 5: Solve for x
    x = 6,256,679,444.16/108,581.60
  6. Step 6: Final answer
    x = 57,621.91

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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.