Home / 40,710.87-61,087.19-19,387.71

Finding the Fourth Proportional to 40,710.87, 61,087.19 and 19,387.71

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Solution

The fourth proportional to 40,710.87, 61,087.19 and 19,387.71 is: 29,091.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,710.87 : 61,087.19 = 19,387.71 : x
  2. Step 2: Convert to fraction form
    40,710.87/61,087.19 = 19,387.71/x
  3. Step 3: Cross multiply
    40,710.87x = 61,087.19 × 19,387.71
  4. Step 4: Simplify right side
    40,710.87x = 1,184,340,627.50
  5. Step 5: Solve for x
    x = 1,184,340,627.50/40,710.87
  6. Step 6: Final answer
    x = 29,091.51

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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.