Home / 53,315.01-79,984.80-28,379.09

Finding the Fourth Proportional to 53,315.01, 79,984.80 and 28,379.09

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Solution

The fourth proportional to 53,315.01, 79,984.80 and 28,379.09 is: 42,575.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,315.01 : 79,984.80 = 28,379.09 : x
  2. Step 2: Convert to fraction form
    53,315.01/79,984.80 = 28,379.09/x
  3. Step 3: Cross multiply
    53,315.01x = 79,984.80 × 28,379.09
  4. Step 4: Simplify right side
    53,315.01x = 2,269,896,037.79
  5. Step 5: Solve for x
    x = 2,269,896,037.79/53,315.01
  6. Step 6: Final answer
    x = 42,575.18

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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.