Home / 70,391.28-97,139.98-38,561.30

Finding the Fourth Proportional to 70,391.28, 97,139.98 and 38,561.30

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Solution

The fourth proportional to 70,391.28, 97,139.98 and 38,561.30 is: 53,214.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,391.28 : 97,139.98 = 38,561.30 : x
  2. Step 2: Convert to fraction form
    70,391.28/97,139.98 = 38,561.30/x
  3. Step 3: Cross multiply
    70,391.28x = 97,139.98 × 38,561.30
  4. Step 4: Simplify right side
    70,391.28x = 3,745,843,910.77
  5. Step 5: Solve for x
    x = 3,745,843,910.77/70,391.28
  6. Step 6: Final answer
    x = 53,214.60

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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.