Home / 98,278.47-135,624.69-55,839.33

Finding the Fourth Proportional to 98,278.47, 135,624.69 and 55,839.33

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Solution

The fourth proportional to 98,278.47, 135,624.69 and 55,839.33 is: 77,058.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,278.47 : 135,624.69 = 55,839.33 : x
  2. Step 2: Convert to fraction form
    98,278.47/135,624.69 = 55,839.33/x
  3. Step 3: Cross multiply
    98,278.47x = 135,624.69 × 55,839.33
  4. Step 4: Simplify right side
    98,278.47x = 7,573,191,821.06
  5. Step 5: Solve for x
    x = 7,573,191,821.06/98,278.47
  6. Step 6: Final answer
    x = 77,058.50

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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.