Home / 65,865.60-98,769.20-47,319.84

Finding the Fourth Proportional to 65,865.60, 98,769.20 and 47,319.84

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Solution

The fourth proportional to 65,865.60, 98,769.20 and 47,319.84 is: 70,958.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,865.60 : 98,769.20 = 47,319.84 : x
  2. Step 2: Convert to fraction form
    65,865.60/98,769.20 = 47,319.84/x
  3. Step 3: Cross multiply
    65,865.60x = 98,769.20 × 47,319.84
  4. Step 4: Simplify right side
    65,865.60x = 4,673,742,740.93
  5. Step 5: Solve for x
    x = 4,673,742,740.93/65,865.60
  6. Step 6: Final answer
    x = 70,958.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.