Home / 40,865.28-61,178.40-31,043.04

Finding the Fourth Proportional to 40,865.28, 61,178.40 and 31,043.04

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Solution

The fourth proportional to 40,865.28, 61,178.40 and 31,043.04 is: 46,473.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,865.28 : 61,178.40 = 31,043.04 : x
  2. Step 2: Convert to fraction form
    40,865.28/61,178.40 = 31,043.04/x
  3. Step 3: Cross multiply
    40,865.28x = 61,178.40 × 31,043.04
  4. Step 4: Simplify right side
    40,865.28x = 1,899,163,518.34
  5. Step 5: Solve for x
    x = 1,899,163,518.34/40,865.28
  6. Step 6: Final answer
    x = 46,473.77

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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.