Home / 63,133.20-87,152.49-40,480.74

Finding the Fourth Proportional to 63,133.20, 87,152.49 and 40,480.74

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Solution

The fourth proportional to 63,133.20, 87,152.49 and 40,480.74 is: 55,881.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,133.20 : 87,152.49 = 40,480.74 : x
  2. Step 2: Convert to fraction form
    63,133.20/87,152.49 = 40,480.74/x
  3. Step 3: Cross multiply
    63,133.20x = 87,152.49 × 40,480.74
  4. Step 4: Simplify right side
    63,133.20x = 3,527,997,288.04
  5. Step 5: Solve for x
    x = 3,527,997,288.04/63,133.20
  6. Step 6: Final answer
    x = 55,881.81

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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.