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Finding the Fourth Proportional to 64,867.60, 97,294.20 and 53,160.40

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Solution

The fourth proportional to 64,867.60, 97,294.20 and 53,160.40 is: 79,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,867.60 : 97,294.20 = 53,160.40 : x
  2. Step 2: Convert to fraction form
    64,867.60/97,294.20 = 53,160.40/x
  3. Step 3: Cross multiply
    64,867.60x = 97,294.20 × 53,160.40
  4. Step 4: Simplify right side
    64,867.60x = 5,172,198,589.68
  5. Step 5: Solve for x
    x = 5,172,198,589.68/64,867.60
  6. Step 6: Final answer
    x = 79,734.70

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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.