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Finding the Fourth Proportional to 57,245.60, 79,002.88 and 31,754.40

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Solution

The fourth proportional to 57,245.60, 79,002.88 and 31,754.40 is: 43,823.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,245.60 : 79,002.88 = 31,754.40 : x
  2. Step 2: Convert to fraction form
    57,245.60/79,002.88 = 31,754.40/x
  3. Step 3: Cross multiply
    57,245.60x = 79,002.88 × 31,754.40
  4. Step 4: Simplify right side
    57,245.60x = 2,508,689,052.67
  5. Step 5: Solve for x
    x = 2,508,689,052.67/57,245.60
  6. Step 6: Final answer
    x = 43,823.26

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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.