Home / 74,642.02-111,945.60-21,332.53

Finding the Fourth Proportional to 74,642.02, 111,945.60 and 21,332.53

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Solution

The fourth proportional to 74,642.02, 111,945.60 and 21,332.53 is: 31,993.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,642.02 : 111,945.60 = 21,332.53 : x
  2. Step 2: Convert to fraction form
    74,642.02/111,945.60 = 21,332.53/x
  3. Step 3: Cross multiply
    74,642.02x = 111,945.60 × 21,332.53
  4. Step 4: Simplify right side
    74,642.02x = 2,388,082,870.37
  5. Step 5: Solve for x
    x = 2,388,082,870.37/74,642.02
  6. Step 6: Final answer
    x = 31,993.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.