Home / 57,798.40-86,680.32-30,081.28

Finding the Fourth Proportional to 57,798.40, 86,680.32 and 30,081.28

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Solution

The fourth proportional to 57,798.40, 86,680.32 and 30,081.28 is: 45,112.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,798.40 : 86,680.32 = 30,081.28 : x
  2. Step 2: Convert to fraction form
    57,798.40/86,680.32 = 30,081.28/x
  3. Step 3: Cross multiply
    57,798.40x = 86,680.32 × 30,081.28
  4. Step 4: Simplify right side
    57,798.40x = 2,607,454,976.41
  5. Step 5: Solve for x
    x = 2,607,454,976.41/57,798.40
  6. Step 6: Final answer
    x = 45,112.93

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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.