Home / 172,417.04-258,635.28-54,085.76

Finding the Fourth Proportional to 172,417.04, 258,635.28 and 54,085.76

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Solution

The fourth proportional to 172,417.04, 258,635.28 and 54,085.76 is: 81,131.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,417.04 : 258,635.28 = 54,085.76 : x
  2. Step 2: Convert to fraction form
    172,417.04/258,635.28 = 54,085.76/x
  3. Step 3: Cross multiply
    172,417.04x = 258,635.28 × 54,085.76
  4. Step 4: Simplify right side
    172,417.04x = 13,988,485,681.61
  5. Step 5: Solve for x
    x = 13,988,485,681.61/172,417.04
  6. Step 6: Final answer
    x = 81,131.69

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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.