Home / 40,082.42-60,123.64-13,787.40

Finding the Fourth Proportional to 40,082.42, 60,123.64 and 13,787.40

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Solution

The fourth proportional to 40,082.42, 60,123.64 and 13,787.40 is: 20,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,082.42 : 60,123.64 = 13,787.40 : x
  2. Step 2: Convert to fraction form
    40,082.42/60,123.64 = 13,787.40/x
  3. Step 3: Cross multiply
    40,082.42x = 60,123.64 × 13,787.40
  4. Step 4: Simplify right side
    40,082.42x = 828,948,674.14
  5. Step 5: Solve for x
    x = 828,948,674.14/40,082.42
  6. Step 6: Final answer
    x = 20,681.10

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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.