Home / 40,578.66-56,070.09-31,228.02

Finding the Fourth Proportional to 40,578.66, 56,070.09 and 31,228.02

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Solution

The fourth proportional to 40,578.66, 56,070.09 and 31,228.02 is: 43,149.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,578.66 : 56,070.09 = 31,228.02 : x
  2. Step 2: Convert to fraction form
    40,578.66/56,070.09 = 31,228.02/x
  3. Step 3: Cross multiply
    40,578.66x = 56,070.09 × 31,228.02
  4. Step 4: Simplify right side
    40,578.66x = 1,750,957,891.92
  5. Step 5: Solve for x
    x = 1,750,957,891.92/40,578.66
  6. Step 6: Final answer
    x = 43,149.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.