Home / 81,967.38-113,111.69-46,158.90

Finding the Fourth Proportional to 81,967.38, 113,111.69 and 46,158.90

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Solution

The fourth proportional to 81,967.38, 113,111.69 and 46,158.90 is: 63,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,967.38 : 113,111.69 = 46,158.90 : x
  2. Step 2: Convert to fraction form
    81,967.38/113,111.69 = 46,158.90/x
  3. Step 3: Cross multiply
    81,967.38x = 113,111.69 × 46,158.90
  4. Step 4: Simplify right side
    81,967.38x = 5,221,111,187.54
  5. Step 5: Solve for x
    x = 5,221,111,187.54/81,967.38
  6. Step 6: Final answer
    x = 63,697.43

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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.