Home / 57,279.61-79,043.77-31,787.08

Finding the Fourth Proportional to 57,279.61, 79,043.77 and 31,787.08

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Solution

The fourth proportional to 57,279.61, 79,043.77 and 31,787.08 is: 43,865.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,279.61 : 79,043.77 = 31,787.08 : x
  2. Step 2: Convert to fraction form
    57,279.61/79,043.77 = 31,787.08/x
  3. Step 3: Cross multiply
    57,279.61x = 79,043.77 × 31,787.08
  4. Step 4: Simplify right side
    57,279.61x = 2,512,570,748.43
  5. Step 5: Solve for x
    x = 2,512,570,748.43/57,279.61
  6. Step 6: Final answer
    x = 43,865.01

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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.