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Finding the Fourth Proportional to 64,129.92, 95,679.84 and 57,494.40

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Solution

The fourth proportional to 64,129.92, 95,679.84 and 57,494.40 is: 85,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,129.92 : 95,679.84 = 57,494.40 : x
  2. Step 2: Convert to fraction form
    64,129.92/95,679.84 = 57,494.40/x
  3. Step 3: Cross multiply
    64,129.92x = 95,679.84 × 57,494.40
  4. Step 4: Simplify right side
    64,129.92x = 5,501,054,992.90
  5. Step 5: Solve for x
    x = 5,501,054,992.90/64,129.92
  6. Step 6: Final answer
    x = 85,779.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.