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Finding the Fourth Proportional to 65,304.32, 90,119.68 and 35,496.96

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Solution

The fourth proportional to 65,304.32, 90,119.68 and 35,496.96 is: 48,985.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,304.32 : 90,119.68 = 35,496.96 : x
  2. Step 2: Convert to fraction form
    65,304.32/90,119.68 = 35,496.96/x
  3. Step 3: Cross multiply
    65,304.32x = 90,119.68 × 35,496.96
  4. Step 4: Simplify right side
    65,304.32x = 3,198,974,676.17
  5. Step 5: Solve for x
    x = 3,198,974,676.17/65,304.32
  6. Step 6: Final answer
    x = 48,985.65

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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.