Home / 53,177.26-73,384.28-28,978.18

Finding the Fourth Proportional to 53,177.26, 73,384.28 and 28,978.18

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Solution

The fourth proportional to 53,177.26, 73,384.28 and 28,978.18 is: 39,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,177.26 : 73,384.28 = 28,978.18 : x
  2. Step 2: Convert to fraction form
    53,177.26/73,384.28 = 28,978.18/x
  3. Step 3: Cross multiply
    53,177.26x = 73,384.28 × 28,978.18
  4. Step 4: Simplify right side
    53,177.26x = 2,126,542,875.01
  5. Step 5: Solve for x
    x = 2,126,542,875.01/53,177.26
  6. Step 6: Final answer
    x = 39,989.70

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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.