Home / 81,705.26-122,557.98-25,545.66

Finding the Fourth Proportional to 81,705.26, 122,557.98 and 25,545.66

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Solution

The fourth proportional to 81,705.26, 122,557.98 and 25,545.66 is: 38,318.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,705.26 : 122,557.98 = 25,545.66 : x
  2. Step 2: Convert to fraction form
    81,705.26/122,557.98 = 25,545.66/x
  3. Step 3: Cross multiply
    81,705.26x = 122,557.98 × 25,545.66
  4. Step 4: Simplify right side
    81,705.26x = 3,130,824,857.63
  5. Step 5: Solve for x
    x = 3,130,824,857.63/81,705.26
  6. Step 6: Final answer
    x = 38,318.52

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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.