Home / 76,127.19-105,043.92-43,421.88

Finding the Fourth Proportional to 76,127.19, 105,043.92 and 43,421.88

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Solution

The fourth proportional to 76,127.19, 105,043.92 and 43,421.88 is: 59,915.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,127.19 : 105,043.92 = 43,421.88 : x
  2. Step 2: Convert to fraction form
    76,127.19/105,043.92 = 43,421.88/x
  3. Step 3: Cross multiply
    76,127.19x = 105,043.92 × 43,421.88
  4. Step 4: Simplify right side
    76,127.19x = 4,561,204,488.97
  5. Step 5: Solve for x
    x = 4,561,204,488.97/76,127.19
  6. Step 6: Final answer
    x = 59,915.58

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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.