Home / 65,749.20-98,623.80-40,817.40

Finding the Fourth Proportional to 65,749.20, 98,623.80 and 40,817.40

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Solution

The fourth proportional to 65,749.20, 98,623.80 and 40,817.40 is: 61,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,749.20 : 98,623.80 = 40,817.40 : x
  2. Step 2: Convert to fraction form
    65,749.20/98,623.80 = 40,817.40/x
  3. Step 3: Cross multiply
    65,749.20x = 98,623.80 × 40,817.40
  4. Step 4: Simplify right side
    65,749.20x = 4,025,567,094.12
  5. Step 5: Solve for x
    x = 4,025,567,094.12/65,749.20
  6. Step 6: Final answer
    x = 61,226.10

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1.5x scale

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.