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Finding the Fourth Proportional to 169,881.68, 254,823.12 and 51,554

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Solution

The fourth proportional to 169,881.68, 254,823.12 and 51,554 is: 77,331.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,881.68 : 254,823.12 = 51,554 : x
  2. Step 2: Convert to fraction form
    169,881.68/254,823.12 = 51,554/x
  3. Step 3: Cross multiply
    169,881.68x = 254,823.12 × 51,554
  4. Step 4: Simplify right side
    169,881.68x = 13,137,151,128.48
  5. Step 5: Solve for x
    x = 13,137,151,128.48/169,881.68
  6. Step 6: Final answer
    x = 77,331.18

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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.