Home / 40,139.84-60,167.52-19,319.36

Finding the Fourth Proportional to 40,139.84, 60,167.52 and 19,319.36

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Solution

The fourth proportional to 40,139.84, 60,167.52 and 19,319.36 is: 28,958.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.84 : 60,167.52 = 19,319.36 : x
  2. Step 2: Convert to fraction form
    40,139.84/60,167.52 = 19,319.36/x
  3. Step 3: Cross multiply
    40,139.84x = 60,167.52 × 19,319.36
  4. Step 4: Simplify right side
    40,139.84x = 1,162,397,979.19
  5. Step 5: Solve for x
    x = 1,162,397,979.19/40,139.84
  6. Step 6: Final answer
    x = 28,958.71

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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.