Home / 98,749.80-136,274.04-53,427.78

Finding the Fourth Proportional to 98,749.80, 136,274.04 and 53,427.78

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Solution

The fourth proportional to 98,749.80, 136,274.04 and 53,427.78 is: 73,729.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,749.80 : 136,274.04 = 53,427.78 : x
  2. Step 2: Convert to fraction form
    98,749.80/136,274.04 = 53,427.78/x
  3. Step 3: Cross multiply
    98,749.80x = 136,274.04 × 53,427.78
  4. Step 4: Simplify right side
    98,749.80x = 7,280,819,428.83
  5. Step 5: Solve for x
    x = 7,280,819,428.83/98,749.80
  6. Step 6: Final answer
    x = 73,729.97

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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.