Home / 52,640.52-72,643.64-28,767.21

Finding the Fourth Proportional to 52,640.52, 72,643.64 and 28,767.21

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Solution

The fourth proportional to 52,640.52, 72,643.64 and 28,767.21 is: 39,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,640.52 : 72,643.64 = 28,767.21 : x
  2. Step 2: Convert to fraction form
    52,640.52/72,643.64 = 28,767.21/x
  3. Step 3: Cross multiply
    52,640.52x = 72,643.64 × 28,767.21
  4. Step 4: Simplify right side
    52,640.52x = 2,089,754,847.04
  5. Step 5: Solve for x
    x = 2,089,754,847.04/52,640.52
  6. Step 6: Final answer
    x = 39,698.60

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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.