Home / 80,886.04-121,344.63-36,512.80

Finding the Fourth Proportional to 80,886.04, 121,344.63 and 36,512.80

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Solution

The fourth proportional to 80,886.04, 121,344.63 and 36,512.80 is: 54,776.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,886.04 : 121,344.63 = 36,512.80 : x
  2. Step 2: Convert to fraction form
    80,886.04/121,344.63 = 36,512.80/x
  3. Step 3: Cross multiply
    80,886.04x = 121,344.63 × 36,512.80
  4. Step 4: Simplify right side
    80,886.04x = 4,430,632,312.65
  5. Step 5: Solve for x
    x = 4,430,632,312.65/80,886.04
  6. Step 6: Final answer
    x = 54,776.23

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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.