Home / 63,678.24-87,877.77-38,188.75

Finding the Fourth Proportional to 63,678.24, 87,877.77 and 38,188.75

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Solution

The fourth proportional to 63,678.24, 87,877.77 and 38,188.75 is: 52,701.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,678.24 : 87,877.77 = 38,188.75 : x
  2. Step 2: Convert to fraction form
    63,678.24/87,877.77 = 38,188.75/x
  3. Step 3: Cross multiply
    63,678.24x = 87,877.77 × 38,188.75
  4. Step 4: Simplify right side
    63,678.24x = 3,355,942,189.09
  5. Step 5: Solve for x
    x = 3,355,942,189.09/63,678.24
  6. Step 6: Final answer
    x = 52,701.55

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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.