Home / 108,564.40-162,862.80-38,438.20

Finding the Fourth Proportional to 108,564.40, 162,862.80 and 38,438.20

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Solution

The fourth proportional to 108,564.40, 162,862.80 and 38,438.20 is: 57,663.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,564.40 : 162,862.80 = 38,438.20 : x
  2. Step 2: Convert to fraction form
    108,564.40/162,862.80 = 38,438.20/x
  3. Step 3: Cross multiply
    108,564.40x = 162,862.80 × 38,438.20
  4. Step 4: Simplify right side
    108,564.40x = 6,260,152,878.96
  5. Step 5: Solve for x
    x = 6,260,152,878.96/108,564.40
  6. Step 6: Final answer
    x = 57,663.04

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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.