Home / 57,931.01-86,929.36-31,276.65

Finding the Fourth Proportional to 57,931.01, 86,929.36 and 31,276.65

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Solution

The fourth proportional to 57,931.01, 86,929.36 and 31,276.65 is: 46,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,931.01 : 86,929.36 = 31,276.65 : x
  2. Step 2: Convert to fraction form
    57,931.01/86,929.36 = 31,276.65/x
  3. Step 3: Cross multiply
    57,931.01x = 86,929.36 × 31,276.65
  4. Step 4: Simplify right side
    57,931.01x = 2,718,858,732.80
  5. Step 5: Solve for x
    x = 2,718,858,732.80/57,931.01
  6. Step 6: Final answer
    x = 46,932.70

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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.