Home / 57,742.60-86,612.95-18,299.65

Finding the Fourth Proportional to 57,742.60, 86,612.95 and 18,299.65

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Solution

The fourth proportional to 57,742.60, 86,612.95 and 18,299.65 is: 27,449.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,742.60 : 86,612.95 = 18,299.65 : x
  2. Step 2: Convert to fraction form
    57,742.60/86,612.95 = 18,299.65/x
  3. Step 3: Cross multiply
    57,742.60x = 86,612.95 × 18,299.65
  4. Step 4: Simplify right side
    57,742.60x = 1,584,986,670.47
  5. Step 5: Solve for x
    x = 1,584,986,670.47/57,742.60
  6. Step 6: Final answer
    x = 27,449.17

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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.