Home / 71,916.76-99,246.44-40,082.23

Finding the Fourth Proportional to 71,916.76, 99,246.44 and 40,082.23

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Solution

The fourth proportional to 71,916.76, 99,246.44 and 40,082.23 is: 55,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,916.76 : 99,246.44 = 40,082.23 : x
  2. Step 2: Convert to fraction form
    71,916.76/99,246.44 = 40,082.23/x
  3. Step 3: Cross multiply
    71,916.76x = 99,246.44 × 40,082.23
  4. Step 4: Simplify right side
    71,916.76x = 3,978,018,634.76
  5. Step 5: Solve for x
    x = 3,978,018,634.76/71,916.76
  6. Step 6: Final answer
    x = 55,314.21

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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.