Home / 83,742.15-115,564.60-45,501.80

Finding the Fourth Proportional to 83,742.15, 115,564.60 and 45,501.80

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Solution

The fourth proportional to 83,742.15, 115,564.60 and 45,501.80 is: 62,792.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,742.15 : 115,564.60 = 45,501.80 : x
  2. Step 2: Convert to fraction form
    83,742.15/115,564.60 = 45,501.80/x
  3. Step 3: Cross multiply
    83,742.15x = 115,564.60 × 45,501.80
  4. Step 4: Simplify right side
    83,742.15x = 5,258,396,624.70
  5. Step 5: Solve for x
    x = 5,258,396,624.70/83,742.15
  6. Step 6: Final answer
    x = 62,792.71

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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.