Home / 77,780.30-107,335.04-43,324.79

Finding the Fourth Proportional to 77,780.30, 107,335.04 and 43,324.79

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Solution

The fourth proportional to 77,780.30, 107,335.04 and 43,324.79 is: 59,787.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,780.30 : 107,335.04 = 43,324.79 : x
  2. Step 2: Convert to fraction form
    77,780.30/107,335.04 = 43,324.79/x
  3. Step 3: Cross multiply
    77,780.30x = 107,335.04 × 43,324.79
  4. Step 4: Simplify right side
    77,780.30x = 4,650,267,314.34
  5. Step 5: Solve for x
    x = 4,650,267,314.34/77,780.30
  6. Step 6: Final answer
    x = 59,787.22

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1.5x scale

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.