Home / 43,493.91-65,130.09-28,657.86

Finding the Fourth Proportional to 43,493.91, 65,130.09 and 28,657.86

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Solution

The fourth proportional to 43,493.91, 65,130.09 and 28,657.86 is: 42,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,493.91 : 65,130.09 = 28,657.86 : x
  2. Step 2: Convert to fraction form
    43,493.91/65,130.09 = 28,657.86/x
  3. Step 3: Cross multiply
    43,493.91x = 65,130.09 × 28,657.86
  4. Step 4: Simplify right side
    43,493.91x = 1,866,489,001.01
  5. Step 5: Solve for x
    x = 1,866,489,001.01/43,493.91
  6. Step 6: Final answer
    x = 42,913.80

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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.