Home / 98,742.75-136,265.10-54,030.75

Finding the Fourth Proportional to 98,742.75, 136,265.10 and 54,030.75

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Solution

The fourth proportional to 98,742.75, 136,265.10 and 54,030.75 is: 74,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,742.75 : 136,265.10 = 54,030.75 : x
  2. Step 2: Convert to fraction form
    98,742.75/136,265.10 = 54,030.75/x
  3. Step 3: Cross multiply
    98,742.75x = 136,265.10 × 54,030.75
  4. Step 4: Simplify right side
    98,742.75x = 7,362,505,551.83
  5. Step 5: Solve for x
    x = 7,362,505,551.83/98,742.75
  6. Step 6: Final answer
    x = 74,562.49

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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.