Home / 81,509.70-112,444.66-54,298.44

Finding the Fourth Proportional to 81,509.70, 112,444.66 and 54,298.44

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Solution

The fourth proportional to 81,509.70, 112,444.66 and 54,298.44 is: 74,906.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,509.70 : 112,444.66 = 54,298.44 : x
  2. Step 2: Convert to fraction form
    81,509.70/112,444.66 = 54,298.44/x
  3. Step 3: Cross multiply
    81,509.70x = 112,444.66 × 54,298.44
  4. Step 4: Simplify right side
    81,509.70x = 6,105,569,624.33
  5. Step 5: Solve for x
    x = 6,105,569,624.33/81,509.70
  6. Step 6: Final answer
    x = 74,906.05

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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.