Home / 74,089.84-111,140.16-21,499.60

Finding the Fourth Proportional to 74,089.84, 111,140.16 and 21,499.60

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Solution

The fourth proportional to 74,089.84, 111,140.16 and 21,499.60 is: 32,250.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,089.84 : 111,140.16 = 21,499.60 : x
  2. Step 2: Convert to fraction form
    74,089.84/111,140.16 = 21,499.60/x
  3. Step 3: Cross multiply
    74,089.84x = 111,140.16 × 21,499.60
  4. Step 4: Simplify right side
    74,089.84x = 2,389,468,983.94
  5. Step 5: Solve for x
    x = 2,389,468,983.94/74,089.84
  6. Step 6: Final answer
    x = 32,250.97

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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.