Home / 86,545.68-129,772.08-44,408.40

Finding the Fourth Proportional to 86,545.68, 129,772.08 and 44,408.40

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Solution

The fourth proportional to 86,545.68, 129,772.08 and 44,408.40 is: 66,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,545.68 : 129,772.08 = 44,408.40 : x
  2. Step 2: Convert to fraction form
    86,545.68/129,772.08 = 44,408.40/x
  3. Step 3: Cross multiply
    86,545.68x = 129,772.08 × 44,408.40
  4. Step 4: Simplify right side
    86,545.68x = 5,762,970,437.47
  5. Step 5: Solve for x
    x = 5,762,970,437.47/86,545.68
  6. Step 6: Final answer
    x = 66,588.77

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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.