Home / 55,124.18-82,637.04-20,039.12

Finding the Fourth Proportional to 55,124.18, 82,637.04 and 20,039.12

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Solution

The fourth proportional to 55,124.18, 82,637.04 and 20,039.12 is: 30,040.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,124.18 : 82,637.04 = 20,039.12 : x
  2. Step 2: Convert to fraction form
    55,124.18/82,637.04 = 20,039.12/x
  3. Step 3: Cross multiply
    55,124.18x = 82,637.04 × 20,039.12
  4. Step 4: Simplify right side
    55,124.18x = 1,655,973,561.00
  5. Step 5: Solve for x
    x = 1,655,973,561.00/55,124.18
  6. Step 6: Final answer
    x = 30,040.78

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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.