Home / 36,810.80-55,216.20-9,108.80

Finding the Fourth Proportional to 36,810.80, 55,216.20 and 9,108.80

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Solution

The fourth proportional to 36,810.80, 55,216.20 and 9,108.80 is: 13,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,810.80 : 55,216.20 = 9,108.80 : x
  2. Step 2: Convert to fraction form
    36,810.80/55,216.20 = 9,108.80/x
  3. Step 3: Cross multiply
    36,810.80x = 55,216.20 × 9,108.80
  4. Step 4: Simplify right side
    36,810.80x = 502,953,322.56
  5. Step 5: Solve for x
    x = 502,953,322.56/36,810.80
  6. Step 6: Final answer
    x = 13,663.20

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Similar ratio
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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.