Home / 86,545.10-119,433.12-48,308.24

Finding the Fourth Proportional to 86,545.10, 119,433.12 and 48,308.24

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Solution

The fourth proportional to 86,545.10, 119,433.12 and 48,308.24 is: 66,665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,545.10 : 119,433.12 = 48,308.24 : x
  2. Step 2: Convert to fraction form
    86,545.10/119,433.12 = 48,308.24/x
  3. Step 3: Cross multiply
    86,545.10x = 119,433.12 × 48,308.24
  4. Step 4: Simplify right side
    86,545.10x = 5,769,603,824.91
  5. Step 5: Solve for x
    x = 5,769,603,824.91/86,545.10
  6. Step 6: Final answer
    x = 66,665.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.