Home / 91,574.88-126,344.64-51,283.20

Finding the Fourth Proportional to 91,574.88, 126,344.64 and 51,283.20

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Solution

The fourth proportional to 91,574.88, 126,344.64 and 51,283.20 is: 70,754.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,574.88 : 126,344.64 = 51,283.20 : x
  2. Step 2: Convert to fraction form
    91,574.88/126,344.64 = 51,283.20/x
  3. Step 3: Cross multiply
    91,574.88x = 126,344.64 × 51,283.20
  4. Step 4: Simplify right side
    91,574.88x = 6,479,357,442.05
  5. Step 5: Solve for x
    x = 6,479,357,442.05/91,574.88
  6. Step 6: Final answer
    x = 70,754.75

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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.