Home / 78,249.27-117,191.36-57,136.94

Finding the Fourth Proportional to 78,249.27, 117,191.36 and 57,136.94

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Solution

The fourth proportional to 78,249.27, 117,191.36 and 57,136.94 is: 85,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,249.27 : 117,191.36 = 57,136.94 : x
  2. Step 2: Convert to fraction form
    78,249.27/117,191.36 = 57,136.94/x
  3. Step 3: Cross multiply
    78,249.27x = 117,191.36 × 57,136.94
  4. Step 4: Simplify right side
    78,249.27x = 6,695,956,039.00
  5. Step 5: Solve for x
    x = 6,695,956,039.00/78,249.27
  6. Step 6: Final answer
    x = 85,572.13

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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.