Home / 52,839.20-72,917.76-28,967.36

Finding the Fourth Proportional to 52,839.20, 72,917.76 and 28,967.36

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Solution

The fourth proportional to 52,839.20, 72,917.76 and 28,967.36 is: 39,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,839.20 : 72,917.76 = 28,967.36 : x
  2. Step 2: Convert to fraction form
    52,839.20/72,917.76 = 28,967.36/x
  3. Step 3: Cross multiply
    52,839.20x = 72,917.76 × 28,967.36
  4. Step 4: Simplify right side
    52,839.20x = 2,112,235,004.31
  5. Step 5: Solve for x
    x = 2,112,235,004.31/52,839.20
  6. Step 6: Final answer
    x = 39,974.77

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1.5x scale

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.