Home / 72,710.46-100,306.76-42,497.06

Finding the Fourth Proportional to 72,710.46, 100,306.76 and 42,497.06

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Solution

The fourth proportional to 72,710.46, 100,306.76 and 42,497.06 is: 58,626.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,710.46 : 100,306.76 = 42,497.06 : x
  2. Step 2: Convert to fraction form
    72,710.46/100,306.76 = 42,497.06/x
  3. Step 3: Cross multiply
    72,710.46x = 100,306.76 × 42,497.06
  4. Step 4: Simplify right side
    72,710.46x = 4,262,741,684.11
  5. Step 5: Solve for x
    x = 4,262,741,684.11/72,710.46
  6. Step 6: Final answer
    x = 58,626.25

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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.