Home / 65,749.80-98,624.70-40,947.60

Finding the Fourth Proportional to 65,749.80, 98,624.70 and 40,947.60

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Solution

The fourth proportional to 65,749.80, 98,624.70 and 40,947.60 is: 61,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,749.80 : 98,624.70 = 40,947.60 : x
  2. Step 2: Convert to fraction form
    65,749.80/98,624.70 = 40,947.60/x
  3. Step 3: Cross multiply
    65,749.80x = 98,624.70 × 40,947.60
  4. Step 4: Simplify right side
    65,749.80x = 4,038,444,765.72
  5. Step 5: Solve for x
    x = 4,038,444,765.72/65,749.80
  6. Step 6: Final answer
    x = 61,421.40

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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.