Home / 97,921.75-135,132.15-55,483.15

Finding the Fourth Proportional to 97,921.75, 135,132.15 and 55,483.15

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Solution

The fourth proportional to 97,921.75, 135,132.15 and 55,483.15 is: 76,566.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,921.75 : 135,132.15 = 55,483.15 : x
  2. Step 2: Convert to fraction form
    97,921.75/135,132.15 = 55,483.15/x
  3. Step 3: Cross multiply
    97,921.75x = 135,132.15 × 55,483.15
  4. Step 4: Simplify right side
    97,921.75x = 7,497,557,348.27
  5. Step 5: Solve for x
    x = 7,497,557,348.27/97,921.75
  6. Step 6: Final answer
    x = 76,566.82

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1.5x scale

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.