Home / 70,920.27-97,868.68-38,655.17

Finding the Fourth Proportional to 70,920.27, 97,868.68 and 38,655.17

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Solution

The fourth proportional to 70,920.27, 97,868.68 and 38,655.17 is: 53,343.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,920.27 : 97,868.68 = 38,655.17 : x
  2. Step 2: Convert to fraction form
    70,920.27/97,868.68 = 38,655.17/x
  3. Step 3: Cross multiply
    70,920.27x = 97,868.68 × 38,655.17
  4. Step 4: Simplify right side
    70,920.27x = 3,783,129,877.09
  5. Step 5: Solve for x
    x = 3,783,129,877.09/70,920.27
  6. Step 6: Final answer
    x = 53,343.42

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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.