Home / 49,988.56-68,984.28-28,767.40

Finding the Fourth Proportional to 49,988.56, 68,984.28 and 28,767.40

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Solution

The fourth proportional to 49,988.56, 68,984.28 and 28,767.40 is: 39,699.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,988.56 : 68,984.28 = 28,767.40 : x
  2. Step 2: Convert to fraction form
    49,988.56/68,984.28 = 28,767.40/x
  3. Step 3: Cross multiply
    49,988.56x = 68,984.28 × 28,767.40
  4. Step 4: Simplify right side
    49,988.56x = 1,984,498,376.47
  5. Step 5: Solve for x
    x = 1,984,498,376.47/49,988.56
  6. Step 6: Final answer
    x = 39,699.05

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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.