Home / 98,610.32-136,074.66-58,320.92

Finding the Fourth Proportional to 98,610.32, 136,074.66 and 58,320.92

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Solution

The fourth proportional to 98,610.32, 136,074.66 and 58,320.92 is: 80,478.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,610.32 : 136,074.66 = 58,320.92 : x
  2. Step 2: Convert to fraction form
    98,610.32/136,074.66 = 58,320.92/x
  3. Step 3: Cross multiply
    98,610.32x = 136,074.66 × 58,320.92
  4. Step 4: Simplify right side
    98,610.32x = 7,935,999,359.89
  5. Step 5: Solve for x
    x = 7,935,999,359.89/98,610.32
  6. Step 6: Final answer
    x = 80,478.39

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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.