Home / 74,150.64-111,220.56-21,557.34

Finding the Fourth Proportional to 74,150.64, 111,220.56 and 21,557.34

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Solution

The fourth proportional to 74,150.64, 111,220.56 and 21,557.34 is: 32,334.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,150.64 : 111,220.56 = 21,557.34 : x
  2. Step 2: Convert to fraction form
    74,150.64/111,220.56 = 21,557.34/x
  3. Step 3: Cross multiply
    74,150.64x = 111,220.56 × 21,557.34
  4. Step 4: Simplify right side
    74,150.64x = 2,397,619,426.91
  5. Step 5: Solve for x
    x = 2,397,619,426.91/74,150.64
  6. Step 6: Final answer
    x = 32,334.44

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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.