Home / 45,135.29-67,712.05-31,102.04

Finding the Fourth Proportional to 45,135.29, 67,712.05 and 31,102.04

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Solution

The fourth proportional to 45,135.29, 67,712.05 and 31,102.04 is: 46,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,135.29 : 67,712.05 = 31,102.04 : x
  2. Step 2: Convert to fraction form
    45,135.29/67,712.05 = 31,102.04/x
  3. Step 3: Cross multiply
    45,135.29x = 67,712.05 × 31,102.04
  4. Step 4: Simplify right side
    45,135.29x = 2,105,983,095.74
  5. Step 5: Solve for x
    x = 2,105,983,095.74/45,135.29
  6. Step 6: Final answer
    x = 46,659.34

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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.