Home / 81,032.38-111,775.06-53,809.70

Finding the Fourth Proportional to 81,032.38, 111,775.06 and 53,809.70

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Solution

The fourth proportional to 81,032.38, 111,775.06 and 53,809.70 is: 74,224.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,032.38 : 111,775.06 = 53,809.70 : x
  2. Step 2: Convert to fraction form
    81,032.38/111,775.06 = 53,809.70/x
  3. Step 3: Cross multiply
    81,032.38x = 111,775.06 × 53,809.70
  4. Step 4: Simplify right side
    81,032.38x = 6,014,582,446.08
  5. Step 5: Solve for x
    x = 6,014,582,446.08/81,032.38
  6. Step 6: Final answer
    x = 74,224.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.