Home / 86,243.92-129,365.88-39,357.52

Finding the Fourth Proportional to 86,243.92, 129,365.88 and 39,357.52

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Solution

The fourth proportional to 86,243.92, 129,365.88 and 39,357.52 is: 59,036.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,243.92 : 129,365.88 = 39,357.52 : x
  2. Step 2: Convert to fraction form
    86,243.92/129,365.88 = 39,357.52/x
  3. Step 3: Cross multiply
    86,243.92x = 129,365.88 × 39,357.52
  4. Step 4: Simplify right side
    86,243.92x = 5,091,520,209.42
  5. Step 5: Solve for x
    x = 5,091,520,209.42/86,243.92
  6. Step 6: Final answer
    x = 59,036.28

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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.