Home / 85,956.08-128,933.94-48,499.16

Finding the Fourth Proportional to 85,956.08, 128,933.94 and 48,499.16

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Solution

The fourth proportional to 85,956.08, 128,933.94 and 48,499.16 is: 72,748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,956.08 : 128,933.94 = 48,499.16 : x
  2. Step 2: Convert to fraction form
    85,956.08/128,933.94 = 48,499.16/x
  3. Step 3: Cross multiply
    85,956.08x = 128,933.94 × 48,499.16
  4. Step 4: Simplify right side
    85,956.08x = 6,253,187,785.49
  5. Step 5: Solve for x
    x = 6,253,187,785.49/85,956.08
  6. Step 6: Final answer
    x = 72,748.64

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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.