Home / 98,757.06-136,283.78-53,434.05

Finding the Fourth Proportional to 98,757.06, 136,283.78 and 53,434.05

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Solution

The fourth proportional to 98,757.06, 136,283.78 and 53,434.05 is: 73,738.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,757.06 : 136,283.78 = 53,434.05 : x
  2. Step 2: Convert to fraction form
    98,757.06/136,283.78 = 53,434.05/x
  3. Step 3: Cross multiply
    98,757.06x = 136,283.78 × 53,434.05
  4. Step 4: Simplify right side
    98,757.06x = 7,282,194,047.54
  5. Step 5: Solve for x
    x = 7,282,194,047.54/98,757.06
  6. Step 6: Final answer
    x = 73,738.47

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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.