Home / 48,545.82-72,816.30-13,485.78

Finding the Fourth Proportional to 48,545.82, 72,816.30 and 13,485.78

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Solution

The fourth proportional to 48,545.82, 72,816.30 and 13,485.78 is: 20,227.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,545.82 : 72,816.30 = 13,485.78 : x
  2. Step 2: Convert to fraction form
    48,545.82/72,816.30 = 13,485.78/x
  3. Step 3: Cross multiply
    48,545.82x = 72,816.30 × 13,485.78
  4. Step 4: Simplify right side
    48,545.82x = 981,984,602.21
  5. Step 5: Solve for x
    x = 981,984,602.21/48,545.82
  6. Step 6: Final answer
    x = 20,227.99

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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.