Home / 99,662.07-137,534.73-54,339.68

Finding the Fourth Proportional to 99,662.07, 137,534.73 and 54,339.68

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Solution

The fourth proportional to 99,662.07, 137,534.73 and 54,339.68 is: 74,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,662.07 : 137,534.73 = 54,339.68 : x
  2. Step 2: Convert to fraction form
    99,662.07/137,534.73 = 54,339.68/x
  3. Step 3: Cross multiply
    99,662.07x = 137,534.73 × 54,339.68
  4. Step 4: Simplify right side
    99,662.07x = 7,473,593,217.09
  5. Step 5: Solve for x
    x = 7,473,593,217.09/99,662.07
  6. Step 6: Final answer
    x = 74,989.34

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1.5x scale

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.