Home / 65,345.20-97,758.60-56,676.40

Finding the Fourth Proportional to 65,345.20, 97,758.60 and 56,676.40

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Solution

The fourth proportional to 65,345.20, 97,758.60 and 56,676.40 is: 84,789.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,345.20 : 97,758.60 = 56,676.40 : x
  2. Step 2: Convert to fraction form
    65,345.20/97,758.60 = 56,676.40/x
  3. Step 3: Cross multiply
    65,345.20x = 97,758.60 × 56,676.40
  4. Step 4: Simplify right side
    65,345.20x = 5,540,605,517.04
  5. Step 5: Solve for x
    x = 5,540,605,517.04/65,345.20
  6. Step 6: Final answer
    x = 84,789.79

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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.