Home / 86,340.59-129,478.08-41,315.73

Finding the Fourth Proportional to 86,340.59, 129,478.08 and 41,315.73

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Solution

The fourth proportional to 86,340.59, 129,478.08 and 41,315.73 is: 61,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,340.59 : 129,478.08 = 41,315.73 : x
  2. Step 2: Convert to fraction form
    86,340.59/129,478.08 = 41,315.73/x
  3. Step 3: Cross multiply
    86,340.59x = 129,478.08 × 41,315.73
  4. Step 4: Simplify right side
    86,340.59x = 5,349,481,394.20
  5. Step 5: Solve for x
    x = 5,349,481,394.20/86,340.59
  6. Step 6: Final answer
    x = 61,957.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.