Home / 74,260.80-111,389.34-21,670.74

Finding the Fourth Proportional to 74,260.80, 111,389.34 and 21,670.74

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Solution

The fourth proportional to 74,260.80, 111,389.34 and 21,670.74 is: 32,505.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,260.80 : 111,389.34 = 21,670.74 : x
  2. Step 2: Convert to fraction form
    74,260.80/111,389.34 = 21,670.74/x
  3. Step 3: Cross multiply
    74,260.80x = 111,389.34 × 21,670.74
  4. Step 4: Simplify right side
    74,260.80x = 2,413,888,923.14
  5. Step 5: Solve for x
    x = 2,413,888,923.14/74,260.80
  6. Step 6: Final answer
    x = 32,505.56

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1.5x scale

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.