Home / 68,947.66-103,325.80-31,416

Finding the Fourth Proportional to 68,947.66, 103,325.80 and 31,416

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Solution

The fourth proportional to 68,947.66, 103,325.80 and 31,416 is: 47,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,947.66 : 103,325.80 = 31,416 : x
  2. Step 2: Convert to fraction form
    68,947.66/103,325.80 = 31,416/x
  3. Step 3: Cross multiply
    68,947.66x = 103,325.80 × 31,416
  4. Step 4: Simplify right side
    68,947.66x = 3,246,083,332.80
  5. Step 5: Solve for x
    x = 3,246,083,332.80/68,947.66
  6. Step 6: Final answer
    x = 47,080.40

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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.