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Finding the Fourth Proportional to 57,322.63, 85,983.13 and 40,385.63

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Solution

The fourth proportional to 57,322.63, 85,983.13 and 40,385.63 is: 60,577.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,322.63 : 85,983.13 = 40,385.63 : x
  2. Step 2: Convert to fraction form
    57,322.63/85,983.13 = 40,385.63/x
  3. Step 3: Cross multiply
    57,322.63x = 85,983.13 × 40,385.63
  4. Step 4: Simplify right side
    57,322.63x = 3,472,482,988.42
  5. Step 5: Solve for x
    x = 3,472,482,988.42/57,322.63
  6. Step 6: Final answer
    x = 60,577.88

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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.