Home / 99,388.39-137,157.06-54,066.49

Finding the Fourth Proportional to 99,388.39, 137,157.06 and 54,066.49

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Solution

The fourth proportional to 99,388.39, 137,157.06 and 54,066.49 is: 74,612.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,388.39 : 137,157.06 = 54,066.49 : x
  2. Step 2: Convert to fraction form
    99,388.39/137,157.06 = 54,066.49/x
  3. Step 3: Cross multiply
    99,388.39x = 137,157.06 × 54,066.49
  4. Step 4: Simplify right side
    99,388.39x = 7,415,600,812.92
  5. Step 5: Solve for x
    x = 7,415,600,812.92/99,388.39
  6. Step 6: Final answer
    x = 74,612.34

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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.