Home / 74,082.30-111,123.45-40,904.70

Finding the Fourth Proportional to 74,082.30, 111,123.45 and 40,904.70

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Solution

The fourth proportional to 74,082.30, 111,123.45 and 40,904.70 is: 61,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,082.30 : 111,123.45 = 40,904.70 : x
  2. Step 2: Convert to fraction form
    74,082.30/111,123.45 = 40,904.70/x
  3. Step 3: Cross multiply
    74,082.30x = 111,123.45 × 40,904.70
  4. Step 4: Simplify right side
    74,082.30x = 4,545,471,385.22
  5. Step 5: Solve for x
    x = 4,545,471,385.22/74,082.30
  6. Step 6: Final answer
    x = 61,357.05

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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.