Home / 99,662.08-137,534.74-54,339.68

Finding the Fourth Proportional to 99,662.08, 137,534.74 and 54,339.68

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Solution

The fourth proportional to 99,662.08, 137,534.74 and 54,339.68 is: 74,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,662.08 : 137,534.74 = 54,339.68 : x
  2. Step 2: Convert to fraction form
    99,662.08/137,534.74 = 54,339.68/x
  3. Step 3: Cross multiply
    99,662.08x = 137,534.74 × 54,339.68
  4. Step 4: Simplify right side
    99,662.08x = 7,473,593,760.48
  5. Step 5: Solve for x
    x = 7,473,593,760.48/99,662.08
  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.