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Finding the Fourth Proportional to 70,348.32, 97,082.88 and 38,520.24

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Solution

The fourth proportional to 70,348.32, 97,082.88 and 38,520.24 is: 53,159.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,348.32 : 97,082.88 = 38,520.24 : x
  2. Step 2: Convert to fraction form
    70,348.32/97,082.88 = 38,520.24/x
  3. Step 3: Cross multiply
    70,348.32x = 97,082.88 × 38,520.24
  4. Step 4: Simplify right side
    70,348.32x = 3,739,655,837.49
  5. Step 5: Solve for x
    x = 3,739,655,837.49/70,348.32
  6. Step 6: Final answer
    x = 53,159.13

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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.