Home / 98,078.10-135,346.51-57,793.56

Finding the Fourth Proportional to 98,078.10, 135,346.51 and 57,793.56

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Solution

The fourth proportional to 98,078.10, 135,346.51 and 57,793.56 is: 79,754.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,078.10 : 135,346.51 = 57,793.56 : x
  2. Step 2: Convert to fraction form
    98,078.10/135,346.51 = 57,793.56/x
  3. Step 3: Cross multiply
    98,078.10x = 135,346.51 × 57,793.56
  4. Step 4: Simplify right side
    98,078.10x = 7,822,156,646.48
  5. Step 5: Solve for x
    x = 7,822,156,646.48/98,078.10
  6. Step 6: Final answer
    x = 79,754.37

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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.