Home / 72,393.05-99,902.34-40,562.18

Finding the Fourth Proportional to 72,393.05, 99,902.34 and 40,562.18

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Solution

The fourth proportional to 72,393.05, 99,902.34 and 40,562.18 is: 55,975.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,393.05 : 99,902.34 = 40,562.18 : x
  2. Step 2: Convert to fraction form
    72,393.05/99,902.34 = 40,562.18/x
  3. Step 3: Cross multiply
    72,393.05x = 99,902.34 × 40,562.18
  4. Step 4: Simplify right side
    72,393.05x = 4,052,256,572.62
  5. Step 5: Solve for x
    x = 4,052,256,572.62/72,393.05
  6. Step 6: Final answer
    x = 55,975.77

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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.