Home / 98,091.13-135,356.40-55,060.76

Finding the Fourth Proportional to 98,091.13, 135,356.40 and 55,060.76

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Solution

The fourth proportional to 98,091.13, 135,356.40 and 55,060.76 is: 75,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,091.13 : 135,356.40 = 55,060.76 : x
  2. Step 2: Convert to fraction form
    98,091.13/135,356.40 = 55,060.76/x
  3. Step 3: Cross multiply
    98,091.13x = 135,356.40 × 55,060.76
  4. Step 4: Simplify right side
    98,091.13x = 7,452,826,593.26
  5. Step 5: Solve for x
    x = 7,452,826,593.26/98,091.13
  6. Step 6: Final answer
    x = 75,978.60

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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.