Home / 72,082.08-99,472.08-40,251.36

Finding the Fourth Proportional to 72,082.08, 99,472.08 and 40,251.36

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Solution

The fourth proportional to 72,082.08, 99,472.08 and 40,251.36 is: 55,546.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,082.08 : 99,472.08 = 40,251.36 : x
  2. Step 2: Convert to fraction form
    72,082.08/99,472.08 = 40,251.36/x
  3. Step 3: Cross multiply
    72,082.08x = 99,472.08 × 40,251.36
  4. Step 4: Simplify right side
    72,082.08x = 4,003,886,502.03
  5. Step 5: Solve for x
    x = 4,003,886,502.03/72,082.08
  6. Step 6: Final answer
    x = 55,546.21

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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.