Home / 74,068.50-111,102.75-18,664.50

Finding the Fourth Proportional to 74,068.50, 111,102.75 and 18,664.50

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Solution

The fourth proportional to 74,068.50, 111,102.75 and 18,664.50 is: 27,996.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,068.50 : 111,102.75 = 18,664.50 : x
  2. Step 2: Convert to fraction form
    74,068.50/111,102.75 = 18,664.50/x
  3. Step 3: Cross multiply
    74,068.50x = 111,102.75 × 18,664.50
  4. Step 4: Simplify right side
    74,068.50x = 2,073,677,277.38
  5. Step 5: Solve for x
    x = 2,073,677,277.38/74,068.50
  6. Step 6: Final answer
    x = 27,996.75

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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.