Home / 82,917.12-124,374.40-20,588.16

Finding the Fourth Proportional to 82,917.12, 124,374.40 and 20,588.16

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Solution

The fourth proportional to 82,917.12, 124,374.40 and 20,588.16 is: 30,881.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,917.12 : 124,374.40 = 20,588.16 : x
  2. Step 2: Convert to fraction form
    82,917.12/124,374.40 = 20,588.16/x
  3. Step 3: Cross multiply
    82,917.12x = 124,374.40 × 20,588.16
  4. Step 4: Simplify right side
    82,917.12x = 2,560,640,047.10
  5. Step 5: Solve for x
    x = 2,560,640,047.10/82,917.12
  6. Step 6: Final answer
    x = 30,881.92

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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.