Home / 40,299.20-60,434.40-18,123.20

Finding the Fourth Proportional to 40,299.20, 60,434.40 and 18,123.20

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Solution

The fourth proportional to 40,299.20, 60,434.40 and 18,123.20 is: 27,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,299.20 : 60,434.40 = 18,123.20 : x
  2. Step 2: Convert to fraction form
    40,299.20/60,434.40 = 18,123.20/x
  3. Step 3: Cross multiply
    40,299.20x = 60,434.40 × 18,123.20
  4. Step 4: Simplify right side
    40,299.20x = 1,095,264,718.08
  5. Step 5: Solve for x
    x = 1,095,264,718.08/40,299.20
  6. Step 6: Final answer
    x = 27,178.32

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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.