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Finding the Fourth Proportional to 65,229.40, 97,649.70 and 38,920.60

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Solution

The fourth proportional to 65,229.40, 97,649.70 and 38,920.60 is: 58,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,229.40 : 97,649.70 = 38,920.60 : x
  2. Step 2: Convert to fraction form
    65,229.40/97,649.70 = 38,920.60/x
  3. Step 3: Cross multiply
    65,229.40x = 97,649.70 × 38,920.60
  4. Step 4: Simplify right side
    65,229.40x = 3,800,584,913.82
  5. Step 5: Solve for x
    x = 3,800,584,913.82/65,229.40
  6. Step 6: Final answer
    x = 58,264.91

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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.