Home / 71,976.83-99,276.53-62,399.57

Finding the Fourth Proportional to 71,976.83, 99,276.53 and 62,399.57

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Solution

The fourth proportional to 71,976.83, 99,276.53 and 62,399.57 is: 86,066.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,976.83 : 99,276.53 = 62,399.57 : x
  2. Step 2: Convert to fraction form
    71,976.83/99,276.53 = 62,399.57/x
  3. Step 3: Cross multiply
    71,976.83x = 99,276.53 × 62,399.57
  4. Step 4: Simplify right side
    71,976.83x = 6,194,811,974.71
  5. Step 5: Solve for x
    x = 6,194,811,974.71/71,976.83
  6. Step 6: Final answer
    x = 86,066.76

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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.