Home / 70,943.78-97,899.42-38,677.70

Finding the Fourth Proportional to 70,943.78, 97,899.42 and 38,677.70

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Solution

The fourth proportional to 70,943.78, 97,899.42 and 38,677.70 is: 53,373.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,943.78 : 97,899.42 = 38,677.70 : x
  2. Step 2: Convert to fraction form
    70,943.78/97,899.42 = 38,677.70/x
  3. Step 3: Cross multiply
    70,943.78x = 97,899.42 × 38,677.70
  4. Step 4: Simplify right side
    70,943.78x = 3,786,524,396.93
  5. Step 5: Solve for x
    x = 3,786,524,396.93/70,943.78
  6. Step 6: Final answer
    x = 53,373.59

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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.