Home / 40,720.57-61,043.27-28,246.47

Finding the Fourth Proportional to 40,720.57, 61,043.27 and 28,246.47

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Solution

The fourth proportional to 40,720.57, 61,043.27 and 28,246.47 is: 42,343.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,720.57 : 61,043.27 = 28,246.47 : x
  2. Step 2: Convert to fraction form
    40,720.57/61,043.27 = 28,246.47/x
  3. Step 3: Cross multiply
    40,720.57x = 61,043.27 × 28,246.47
  4. Step 4: Simplify right side
    40,720.57x = 1,724,257,026.87
  5. Step 5: Solve for x
    x = 1,724,257,026.87/40,720.57
  6. Step 6: Final answer
    x = 42,343.63

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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.