Home / 80,606.16-120,957.88-57,425.36

Finding the Fourth Proportional to 80,606.16, 120,957.88 and 57,425.36

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Solution

The fourth proportional to 80,606.16, 120,957.88 and 57,425.36 is: 86,172.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,606.16 : 120,957.88 = 57,425.36 : x
  2. Step 2: Convert to fraction form
    80,606.16/120,957.88 = 57,425.36/x
  3. Step 3: Cross multiply
    80,606.16x = 120,957.88 × 57,425.36
  4. Step 4: Simplify right side
    80,606.16x = 6,946,049,803.84
  5. Step 5: Solve for x
    x = 6,946,049,803.84/80,606.16
  6. Step 6: Final answer
    x = 86,172.69

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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.