Home / 40,760.28-61,140.50-11,178.52

Finding the Fourth Proportional to 40,760.28, 61,140.50 and 11,178.52

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Solution

The fourth proportional to 40,760.28, 61,140.50 and 11,178.52 is: 16,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,760.28 : 61,140.50 = 11,178.52 : x
  2. Step 2: Convert to fraction form
    40,760.28/61,140.50 = 11,178.52/x
  3. Step 3: Cross multiply
    40,760.28x = 61,140.50 × 11,178.52
  4. Step 4: Simplify right side
    40,760.28x = 683,460,302.06
  5. Step 5: Solve for x
    x = 683,460,302.06/40,760.28
  6. Step 6: Final answer
    x = 16,767.80

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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.