Home / 97,678.27-134,789.49-54,650.30

Finding the Fourth Proportional to 97,678.27, 134,789.49 and 54,650.30

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Solution

The fourth proportional to 97,678.27, 134,789.49 and 54,650.30 is: 75,413.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,678.27 : 134,789.49 = 54,650.30 : x
  2. Step 2: Convert to fraction form
    97,678.27/134,789.49 = 54,650.30/x
  3. Step 3: Cross multiply
    97,678.27x = 134,789.49 × 54,650.30
  4. Step 4: Simplify right side
    97,678.27x = 7,366,286,065.35
  5. Step 5: Solve for x
    x = 7,366,286,065.35/97,678.27
  6. Step 6: Final answer
    x = 75,413.76

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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.