Home / 99,650.81-137,518.03-54,328.79

Finding the Fourth Proportional to 99,650.81, 137,518.03 and 54,328.79

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Solution

The fourth proportional to 99,650.81, 137,518.03 and 54,328.79 is: 74,973.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,650.81 : 137,518.03 = 54,328.79 : x
  2. Step 2: Convert to fraction form
    99,650.81/137,518.03 = 54,328.79/x
  3. Step 3: Cross multiply
    99,650.81x = 137,518.03 × 54,328.79
  4. Step 4: Simplify right side
    99,650.81x = 7,471,187,485.49
  5. Step 5: Solve for x
    x = 7,471,187,485.49/99,650.81
  6. Step 6: Final answer
    x = 74,973.68

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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.