Home / 86,929.83-119,845.38-74,318.49

Finding the Fourth Proportional to 86,929.83, 119,845.38 and 74,318.49

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Solution

The fourth proportional to 86,929.83, 119,845.38 and 74,318.49 is: 102,458.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,929.83 : 119,845.38 = 74,318.49 : x
  2. Step 2: Convert to fraction form
    86,929.83/119,845.38 = 74,318.49/x
  3. Step 3: Cross multiply
    86,929.83x = 119,845.38 × 74,318.49
  4. Step 4: Simplify right side
    86,929.83x = 8,906,727,675.08
  5. Step 5: Solve for x
    x = 8,906,727,675.08/86,929.83
  6. Step 6: Final answer
    x = 102,458.82

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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.