Home / 40,876.71-61,335.59-18,688.11

Finding the Fourth Proportional to 40,876.71, 61,335.59 and 18,688.11

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Solution

The fourth proportional to 40,876.71, 61,335.59 and 18,688.11 is: 28,041.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,876.71 : 61,335.59 = 18,688.11 : x
  2. Step 2: Convert to fraction form
    40,876.71/61,335.59 = 18,688.11/x
  3. Step 3: Cross multiply
    40,876.71x = 61,335.59 × 18,688.11
  4. Step 4: Simplify right side
    40,876.71x = 1,146,246,159.39
  5. Step 5: Solve for x
    x = 1,146,246,159.39/40,876.71
  6. Step 6: Final answer
    x = 28,041.55

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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.