Home / 75,712.25-113,573.85-30,712.00

Finding the Fourth Proportional to 75,712.25, 113,573.85 and 30,712.00

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Solution

The fourth proportional to 75,712.25, 113,573.85 and 30,712.00 is: 46,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,712.25 : 113,573.85 = 30,712.00 : x
  2. Step 2: Convert to fraction form
    75,712.25/113,573.85 = 30,712.00/x
  3. Step 3: Cross multiply
    75,712.25x = 113,573.85 × 30,712.00
  4. Step 4: Simplify right side
    75,712.25x = 3,488,079,359.77
  5. Step 5: Solve for x
    x = 3,488,079,359.77/75,712.25
  6. Step 6: Final answer
    x = 46,070.21

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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.