Home / 78,177.32-117,222.24-25,572.68

Finding the Fourth Proportional to 78,177.32, 117,222.24 and 25,572.68

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Solution

The fourth proportional to 78,177.32, 117,222.24 and 25,572.68 is: 38,344.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,177.32 : 117,222.24 = 25,572.68 : x
  2. Step 2: Convert to fraction form
    78,177.32/117,222.24 = 25,572.68/x
  3. Step 3: Cross multiply
    78,177.32x = 117,222.24 × 25,572.68
  4. Step 4: Simplify right side
    78,177.32x = 2,997,686,832.40
  5. Step 5: Solve for x
    x = 2,997,686,832.40/78,177.32
  6. Step 6: Final answer
    x = 38,344.71

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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.