Home / 70,519.16-97,311.50-38,687.32

Finding the Fourth Proportional to 70,519.16, 97,311.50 and 38,687.32

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Solution

The fourth proportional to 70,519.16, 97,311.50 and 38,687.32 is: 53,385.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,519.16 : 97,311.50 = 38,687.32 : x
  2. Step 2: Convert to fraction form
    70,519.16/97,311.50 = 38,687.32/x
  3. Step 3: Cross multiply
    70,519.16x = 97,311.50 × 38,687.32
  4. Step 4: Simplify right side
    70,519.16x = 3,764,721,140.18
  5. Step 5: Solve for x
    x = 3,764,721,140.18/70,519.16
  6. Step 6: Final answer
    x = 53,385.79

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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.