Home / 68,045.41-102,080.36-28,042.12

Finding the Fourth Proportional to 68,045.41, 102,080.36 and 28,042.12

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Solution

The fourth proportional to 68,045.41, 102,080.36 and 28,042.12 is: 42,068.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,045.41 : 102,080.36 = 28,042.12 : x
  2. Step 2: Convert to fraction form
    68,045.41/102,080.36 = 28,042.12/x
  3. Step 3: Cross multiply
    68,045.41x = 102,080.36 × 28,042.12
  4. Step 4: Simplify right side
    68,045.41x = 2,862,549,704.76
  5. Step 5: Solve for x
    x = 2,862,549,704.76/68,045.41
  6. Step 6: Final answer
    x = 42,068.23

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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.