Home / 43,545.71-65,207.77-28,709.61

Finding the Fourth Proportional to 43,545.71, 65,207.77 and 28,709.61

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Solution

The fourth proportional to 43,545.71, 65,207.77 and 28,709.61 is: 42,991.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,545.71 : 65,207.77 = 28,709.61 : x
  2. Step 2: Convert to fraction form
    43,545.71/65,207.77 = 28,709.61/x
  3. Step 3: Cross multiply
    43,545.71x = 65,207.77 × 28,709.61
  4. Step 4: Simplify right side
    43,545.71x = 1,872,089,502.12
  5. Step 5: Solve for x
    x = 1,872,089,502.12/43,545.71
  6. Step 6: Final answer
    x = 42,991.37

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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.