Home / 73,710.18-101,720.25-40,176.18

Finding the Fourth Proportional to 73,710.18, 101,720.25 and 40,176.18

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Solution

The fourth proportional to 73,710.18, 101,720.25 and 40,176.18 is: 55,443.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,710.18 : 101,720.25 = 40,176.18 : x
  2. Step 2: Convert to fraction form
    73,710.18/101,720.25 = 40,176.18/x
  3. Step 3: Cross multiply
    73,710.18x = 101,720.25 × 40,176.18
  4. Step 4: Simplify right side
    73,710.18x = 4,086,731,073.65
  5. Step 5: Solve for x
    x = 4,086,731,073.65/73,710.18
  6. Step 6: Final answer
    x = 55,443.24

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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.