Home / 53,177.21-73,384.68-28,978.36

Finding the Fourth Proportional to 53,177.21, 73,384.68 and 28,978.36

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Solution

The fourth proportional to 53,177.21, 73,384.68 and 28,978.36 is: 39,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,177.21 : 73,384.68 = 28,978.36 : x
  2. Step 2: Convert to fraction form
    53,177.21/73,384.68 = 28,978.36/x
  3. Step 3: Cross multiply
    53,177.21x = 73,384.68 × 28,978.36
  4. Step 4: Simplify right side
    53,177.21x = 2,126,567,675.52
  5. Step 5: Solve for x
    x = 2,126,567,675.52/53,177.21
  6. Step 6: Final answer
    x = 39,990.21

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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.