Home / 77,926.52-116,878.26-28,667

Finding the Fourth Proportional to 77,926.52, 116,878.26 and 28,667

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Solution

The fourth proportional to 77,926.52, 116,878.26 and 28,667 is: 42,996.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,926.52 : 116,878.26 = 28,667 : x
  2. Step 2: Convert to fraction form
    77,926.52/116,878.26 = 28,667/x
  3. Step 3: Cross multiply
    77,926.52x = 116,878.26 × 28,667
  4. Step 4: Simplify right side
    77,926.52x = 3,350,549,079.42
  5. Step 5: Solve for x
    x = 3,350,549,079.42/77,926.52
  6. Step 6: Final answer
    x = 42,996.26

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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.