Home / 97,356.40-134,380.58-57,078.88

Finding the Fourth Proportional to 97,356.40, 134,380.58 and 57,078.88

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Solution

The fourth proportional to 97,356.40, 134,380.58 and 57,078.88 is: 78,785.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,356.40 : 134,380.58 = 57,078.88 : x
  2. Step 2: Convert to fraction form
    97,356.40/134,380.58 = 57,078.88/x
  3. Step 3: Cross multiply
    97,356.40x = 134,380.58 × 57,078.88
  4. Step 4: Simplify right side
    97,356.40x = 7,670,293,000.15
  5. Step 5: Solve for x
    x = 7,670,293,000.15/97,356.40
  6. Step 6: Final answer
    x = 78,785.71

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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.