Home / 99,519.54-137,330.73-54,807.54

Finding the Fourth Proportional to 99,519.54, 137,330.73 and 54,807.54

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Solution

The fourth proportional to 99,519.54, 137,330.73 and 54,807.54 is: 75,630.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,519.54 : 137,330.73 = 54,807.54 : x
  2. Step 2: Convert to fraction form
    99,519.54/137,330.73 = 54,807.54/x
  3. Step 3: Cross multiply
    99,519.54x = 137,330.73 × 54,807.54
  4. Step 4: Simplify right side
    99,519.54x = 7,526,759,477.70
  5. Step 5: Solve for x
    x = 7,526,759,477.70/99,519.54
  6. Step 6: Final answer
    x = 75,630.97

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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.