Home / 57,758.65-86,641.04-18,318.85

Finding the Fourth Proportional to 57,758.65, 86,641.04 and 18,318.85

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Solution

The fourth proportional to 57,758.65, 86,641.04 and 18,318.85 is: 27,479.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,758.65 : 86,641.04 = 18,318.85 : x
  2. Step 2: Convert to fraction form
    57,758.65/86,641.04 = 18,318.85/x
  3. Step 3: Cross multiply
    57,758.65x = 86,641.04 × 18,318.85
  4. Step 4: Simplify right side
    57,758.65x = 1,587,164,215.60
  5. Step 5: Solve for x
    x = 1,587,164,215.60/57,758.65
  6. Step 6: Final answer
    x = 27,479.25

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1.5x scale

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.