Home / 76,987.14-106,213.95-45,144.42

Finding the Fourth Proportional to 76,987.14, 106,213.95 and 45,144.42

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Solution

The fourth proportional to 76,987.14, 106,213.95 and 45,144.42 is: 62,282.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,987.14 : 106,213.95 = 45,144.42 : x
  2. Step 2: Convert to fraction form
    76,987.14/106,213.95 = 45,144.42/x
  3. Step 3: Cross multiply
    76,987.14x = 106,213.95 × 45,144.42
  4. Step 4: Simplify right side
    76,987.14x = 4,794,967,168.66
  5. Step 5: Solve for x
    x = 4,794,967,168.66/76,987.14
  6. Step 6: Final answer
    x = 62,282.70

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1.5x scale

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.