Home / 55,856.25-77,081.76-30,705.75

Finding the Fourth Proportional to 55,856.25, 77,081.76 and 30,705.75

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Solution

The fourth proportional to 55,856.25, 77,081.76 and 30,705.75 is: 42,374.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,856.25 : 77,081.76 = 30,705.75 : x
  2. Step 2: Convert to fraction form
    55,856.25/77,081.76 = 30,705.75/x
  3. Step 3: Cross multiply
    55,856.25x = 77,081.76 × 30,705.75
  4. Step 4: Simplify right side
    55,856.25x = 2,366,853,252.12
  5. Step 5: Solve for x
    x = 2,366,853,252.12/55,856.25
  6. Step 6: Final answer
    x = 42,374.01

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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.