Home / 73,141.08-109,689.12-38,061.60

Finding the Fourth Proportional to 73,141.08, 109,689.12 and 38,061.60

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Solution

The fourth proportional to 73,141.08, 109,689.12 and 38,061.60 is: 57,080.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,141.08 : 109,689.12 = 38,061.60 : x
  2. Step 2: Convert to fraction form
    73,141.08/109,689.12 = 38,061.60/x
  3. Step 3: Cross multiply
    73,141.08x = 109,689.12 × 38,061.60
  4. Step 4: Simplify right side
    73,141.08x = 4,174,943,409.79
  5. Step 5: Solve for x
    x = 4,174,943,409.79/73,141.08
  6. Step 6: Final answer
    x = 57,080.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.