Home / 55,159.13-82,722.20-20,090.59

Finding the Fourth Proportional to 55,159.13, 82,722.20 and 20,090.59

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Solution

The fourth proportional to 55,159.13, 82,722.20 and 20,090.59 is: 30,129.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,159.13 : 82,722.20 = 20,090.59 : x
  2. Step 2: Convert to fraction form
    55,159.13/82,722.20 = 20,090.59/x
  3. Step 3: Cross multiply
    55,159.13x = 82,722.20 × 20,090.59
  4. Step 4: Simplify right side
    55,159.13x = 1,661,937,804.10
  5. Step 5: Solve for x
    x = 1,661,937,804.10/55,159.13
  6. Step 6: Final answer
    x = 30,129.88

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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.