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Finding the Fourth Proportional to 85,229.40, 127,862.58 and 32,638.89

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Solution

The fourth proportional to 85,229.40, 127,862.58 and 32,638.89 is: 48,965.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,229.40 : 127,862.58 = 32,638.89 : x
  2. Step 2: Convert to fraction form
    85,229.40/127,862.58 = 32,638.89/x
  3. Step 3: Cross multiply
    85,229.40x = 127,862.58 × 32,638.89
  4. Step 4: Simplify right side
    85,229.40x = 4,173,292,683.74
  5. Step 5: Solve for x
    x = 4,173,292,683.74/85,229.40
  6. Step 6: Final answer
    x = 48,965.41

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1.5x scale

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.