Home / 82,836.63-124,254.94-20,507.13

Finding the Fourth Proportional to 82,836.63, 124,254.94 and 20,507.13

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Solution

The fourth proportional to 82,836.63, 124,254.94 and 20,507.13 is: 30,760.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,836.63 : 124,254.94 = 20,507.13 : x
  2. Step 2: Convert to fraction form
    82,836.63/124,254.94 = 20,507.13/x
  3. Step 3: Cross multiply
    82,836.63x = 124,254.94 × 20,507.13
  4. Step 4: Simplify right side
    82,836.63x = 2,548,111,535.18
  5. Step 5: Solve for x
    x = 2,548,111,535.18/82,836.63
  6. Step 6: Final answer
    x = 30,760.69

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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.