Home / 86,289.73-129,325.55-38,854.31

Finding the Fourth Proportional to 86,289.73, 129,325.55 and 38,854.31

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Solution

The fourth proportional to 86,289.73, 129,325.55 and 38,854.31 is: 58,232.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,289.73 : 129,325.55 = 38,854.31 : x
  2. Step 2: Convert to fraction form
    86,289.73/129,325.55 = 38,854.31/x
  3. Step 3: Cross multiply
    86,289.73x = 129,325.55 × 38,854.31
  4. Step 4: Simplify right side
    86,289.73x = 5,024,854,169.72
  5. Step 5: Solve for x
    x = 5,024,854,169.72/86,289.73
  6. Step 6: Final answer
    x = 58,232.36

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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.