Home / 45,289.76-67,942.80-18,631.04

Finding the Fourth Proportional to 45,289.76, 67,942.80 and 18,631.04

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Solution

The fourth proportional to 45,289.76, 67,942.80 and 18,631.04 is: 27,949.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,289.76 : 67,942.80 = 18,631.04 : x
  2. Step 2: Convert to fraction form
    45,289.76/67,942.80 = 18,631.04/x
  3. Step 3: Cross multiply
    45,289.76x = 67,942.80 × 18,631.04
  4. Step 4: Simplify right side
    45,289.76x = 1,265,845,024.51
  5. Step 5: Solve for x
    x = 1,265,845,024.51/45,289.76
  6. Step 6: Final answer
    x = 27,949.92

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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.