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Finding the Fourth Proportional to 64,584.30, 89,123.55 and 35,903.90

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Solution

The fourth proportional to 64,584.30, 89,123.55 and 35,903.90 is: 49,545.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,584.30 : 89,123.55 = 35,903.90 : x
  2. Step 2: Convert to fraction form
    64,584.30/89,123.55 = 35,903.90/x
  3. Step 3: Cross multiply
    64,584.30x = 89,123.55 × 35,903.90
  4. Step 4: Simplify right side
    64,584.30x = 3,199,883,026.85
  5. Step 5: Solve for x
    x = 3,199,883,026.85/64,584.30
  6. Step 6: Final answer
    x = 49,545.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.