Home / 56,984.88-78,632.35-31,489.70

Finding the Fourth Proportional to 56,984.88, 78,632.35 and 31,489.70

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Solution

The fourth proportional to 56,984.88, 78,632.35 and 31,489.70 is: 43,452.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,984.88 : 78,632.35 = 31,489.70 : x
  2. Step 2: Convert to fraction form
    56,984.88/78,632.35 = 31,489.70/x
  3. Step 3: Cross multiply
    56,984.88x = 78,632.35 × 31,489.70
  4. Step 4: Simplify right side
    56,984.88x = 2,476,109,111.80
  5. Step 5: Solve for x
    x = 2,476,109,111.80/56,984.88
  6. Step 6: Final answer
    x = 43,452.04

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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.