Home / 86,239.77-129,386.09-44,149.67

Finding the Fourth Proportional to 86,239.77, 129,386.09 and 44,149.67

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Solution

The fourth proportional to 86,239.77, 129,386.09 and 44,149.67 is: 66,238.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,239.77 : 129,386.09 = 44,149.67 : x
  2. Step 2: Convert to fraction form
    86,239.77/129,386.09 = 44,149.67/x
  3. Step 3: Cross multiply
    86,239.77x = 129,386.09 × 44,149.67
  4. Step 4: Simplify right side
    86,239.77x = 5,712,353,124.73
  5. Step 5: Solve for x
    x = 5,712,353,124.73/86,239.77
  6. Step 6: Final answer
    x = 66,238.04

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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.