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Finding the Fourth Proportional to 75,750.80, 104,545.08 and 45,551.57

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Solution

The fourth proportional to 75,750.80, 104,545.08 and 45,551.57 is: 62,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,750.80 : 104,545.08 = 45,551.57 : x
  2. Step 2: Convert to fraction form
    75,750.80/104,545.08 = 45,551.57/x
  3. Step 3: Cross multiply
    75,750.80x = 104,545.08 × 45,551.57
  4. Step 4: Simplify right side
    75,750.80x = 4,762,192,007.05
  5. Step 5: Solve for x
    x = 4,762,192,007.05/75,750.80
  6. Step 6: Final answer
    x = 62,866.56

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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.