Home / 65,923.60-99,115.80-64,541.20

Finding the Fourth Proportional to 65,923.60, 99,115.80 and 64,541.20

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Solution

The fourth proportional to 65,923.60, 99,115.80 and 64,541.20 is: 97,037.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,923.60 : 99,115.80 = 64,541.20 : x
  2. Step 2: Convert to fraction form
    65,923.60/99,115.80 = 64,541.20/x
  3. Step 3: Cross multiply
    65,923.60x = 99,115.80 × 64,541.20
  4. Step 4: Simplify right side
    65,923.60x = 6,397,052,670.96
  5. Step 5: Solve for x
    x = 6,397,052,670.96/65,923.60
  6. Step 6: Final answer
    x = 97,037.37

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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.