Home / 172,411.04-258,626.28-54,079.76

Finding the Fourth Proportional to 172,411.04, 258,626.28 and 54,079.76

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Solution

The fourth proportional to 172,411.04, 258,626.28 and 54,079.76 is: 81,122.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,411.04 : 258,626.28 = 54,079.76 : x
  2. Step 2: Convert to fraction form
    172,411.04/258,626.28 = 54,079.76/x
  3. Step 3: Cross multiply
    172,411.04x = 258,626.28 × 54,079.76
  4. Step 4: Simplify right side
    172,411.04x = 13,986,447,152.09
  5. Step 5: Solve for x
    x = 13,986,447,152.09/172,411.04
  6. Step 6: Final answer
    x = 81,122.69

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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.