Home / 72,155.49-99,574.94-40,324.92

Finding the Fourth Proportional to 72,155.49, 99,574.94 and 40,324.92

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Solution

The fourth proportional to 72,155.49, 99,574.94 and 40,324.92 is: 55,648.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,155.49 : 99,574.94 = 40,324.92 : x
  2. Step 2: Convert to fraction form
    72,155.49/99,574.94 = 40,324.92/x
  3. Step 3: Cross multiply
    72,155.49x = 99,574.94 × 40,324.92
  4. Step 4: Simplify right side
    72,155.49x = 4,015,351,489.50
  5. Step 5: Solve for x
    x = 4,015,351,489.50/72,155.49
  6. Step 6: Final answer
    x = 55,648.59

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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.