Home / 86,584.60-119,346.78-74,920.60

Finding the Fourth Proportional to 86,584.60, 119,346.78 and 74,920.60

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Solution

The fourth proportional to 86,584.60, 119,346.78 and 74,920.60 is: 103,269.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,584.60 : 119,346.78 = 74,920.60 : x
  2. Step 2: Convert to fraction form
    86,584.60/119,346.78 = 74,920.60/x
  3. Step 3: Cross multiply
    86,584.60x = 119,346.78 × 74,920.60
  4. Step 4: Simplify right side
    86,584.60x = 8,941,532,365.67
  5. Step 5: Solve for x
    x = 8,941,532,365.67/86,584.60
  6. Step 6: Final answer
    x = 103,269.32

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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.