Home / 56,799.45-78,387.75-31,310.35

Finding the Fourth Proportional to 56,799.45, 78,387.75 and 31,310.35

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Solution

The fourth proportional to 56,799.45, 78,387.75 and 31,310.35 is: 43,210.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,799.45 : 78,387.75 = 31,310.35 : x
  2. Step 2: Convert to fraction form
    56,799.45/78,387.75 = 31,310.35/x
  3. Step 3: Cross multiply
    56,799.45x = 78,387.75 × 31,310.35
  4. Step 4: Simplify right side
    56,799.45x = 2,454,347,692.24
  5. Step 5: Solve for x
    x = 2,454,347,692.24/56,799.45
  6. Step 6: Final answer
    x = 43,210.76

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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.