Home / 56,275.75-77,660.58-31,125.25

Finding the Fourth Proportional to 56,275.75, 77,660.58 and 31,125.25

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Solution

The fourth proportional to 56,275.75, 77,660.58 and 31,125.25 is: 42,952.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,275.75 : 77,660.58 = 31,125.25 : x
  2. Step 2: Convert to fraction form
    56,275.75/77,660.58 = 31,125.25/x
  3. Step 3: Cross multiply
    56,275.75x = 77,660.58 × 31,125.25
  4. Step 4: Simplify right side
    56,275.75x = 2,417,204,967.65
  5. Step 5: Solve for x
    x = 2,417,204,967.65/56,275.75
  6. Step 6: Final answer
    x = 42,952.87

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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.