Home / 74,694.52-103,078.45-40,703.02

Finding the Fourth Proportional to 74,694.52, 103,078.45 and 40,703.02

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Solution

The fourth proportional to 74,694.52, 103,078.45 and 40,703.02 is: 56,170.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,694.52 : 103,078.45 = 40,703.02 : x
  2. Step 2: Convert to fraction form
    74,694.52/103,078.45 = 40,703.02/x
  3. Step 3: Cross multiply
    74,694.52x = 103,078.45 × 40,703.02
  4. Step 4: Simplify right side
    74,694.52x = 4,195,604,211.92
  5. Step 5: Solve for x
    x = 4,195,604,211.92/74,694.52
  6. Step 6: Final answer
    x = 56,170.17

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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.