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Finding the Fourth Proportional to 65,292.60, 90,102.50 and 38,073.76

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Solution

The fourth proportional to 65,292.60, 90,102.50 and 38,073.76 is: 52,541.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,292.60 : 90,102.50 = 38,073.76 : x
  2. Step 2: Convert to fraction form
    65,292.60/90,102.50 = 38,073.76/x
  3. Step 3: Cross multiply
    65,292.60x = 90,102.50 × 38,073.76
  4. Step 4: Simplify right side
    65,292.60x = 3,430,540,960.40
  5. Step 5: Solve for x
    x = 3,430,540,960.40/65,292.60
  6. Step 6: Final answer
    x = 52,541.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.