Home / 66,276.47-99,414.71-18,892.55

Finding the Fourth Proportional to 66,276.47, 99,414.71 and 18,892.55

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Solution

The fourth proportional to 66,276.47, 99,414.71 and 18,892.55 is: 28,338.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,276.47 : 99,414.71 = 18,892.55 : x
  2. Step 2: Convert to fraction form
    66,276.47/99,414.71 = 18,892.55/x
  3. Step 3: Cross multiply
    66,276.47x = 99,414.71 × 18,892.55
  4. Step 4: Simplify right side
    66,276.47x = 1,878,196,787.87
  5. Step 5: Solve for x
    x = 1,878,196,787.87/66,276.47
  6. Step 6: Final answer
    x = 28,338.82

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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.