Home / 78,038.28-117,057.42-36,514.44

Finding the Fourth Proportional to 78,038.28, 117,057.42 and 36,514.44

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Solution

The fourth proportional to 78,038.28, 117,057.42 and 36,514.44 is: 54,771.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,038.28 : 117,057.42 = 36,514.44 : x
  2. Step 2: Convert to fraction form
    78,038.28/117,057.42 = 36,514.44/x
  3. Step 3: Cross multiply
    78,038.28x = 117,057.42 × 36,514.44
  4. Step 4: Simplify right side
    78,038.28x = 4,274,286,139.14
  5. Step 5: Solve for x
    x = 4,274,286,139.14/78,038.28
  6. Step 6: Final answer
    x = 54,771.66

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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.