Home / 70,381.40-97,126.18-38,115.91

Finding the Fourth Proportional to 70,381.40, 97,126.18 and 38,115.91

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Solution

The fourth proportional to 70,381.40, 97,126.18 and 38,115.91 is: 52,599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,381.40 : 97,126.18 = 38,115.91 : x
  2. Step 2: Convert to fraction form
    70,381.40/97,126.18 = 38,115.91/x
  3. Step 3: Cross multiply
    70,381.40x = 97,126.18 × 38,115.91
  4. Step 4: Simplify right side
    70,381.40x = 3,702,052,883.05
  5. Step 5: Solve for x
    x = 3,702,052,883.05/70,381.40
  6. Step 6: Final answer
    x = 52,599.88

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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.