Home / 88,122.90-121,629.29-54,132.06

Finding the Fourth Proportional to 88,122.90, 121,629.29 and 54,132.06

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Solution

The fourth proportional to 88,122.90, 121,629.29 and 54,132.06 is: 74,714.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,122.90 : 121,629.29 = 54,132.06 : x
  2. Step 2: Convert to fraction form
    88,122.90/121,629.29 = 54,132.06/x
  3. Step 3: Cross multiply
    88,122.90x = 121,629.29 × 54,132.06
  4. Step 4: Simplify right side
    88,122.90x = 6,584,044,024.04
  5. Step 5: Solve for x
    x = 6,584,044,024.04/88,122.90
  6. Step 6: Final answer
    x = 74,714.34

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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.