Home / 86,917.16-119,951.62-49,191.40

Finding the Fourth Proportional to 86,917.16, 119,951.62 and 49,191.40

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Solution

The fourth proportional to 86,917.16, 119,951.62 and 49,191.40 is: 67,887.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,917.16 : 119,951.62 = 49,191.40 : x
  2. Step 2: Convert to fraction form
    86,917.16/119,951.62 = 49,191.40/x
  3. Step 3: Cross multiply
    86,917.16x = 119,951.62 × 49,191.40
  4. Step 4: Simplify right side
    86,917.16x = 5,900,588,120.07
  5. Step 5: Solve for x
    x = 5,900,588,120.07/86,917.16
  6. Step 6: Final answer
    x = 67,887.49

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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.