Home / 42,868.05-64,400.62-30,246.85

Finding the Fourth Proportional to 42,868.05, 64,400.62 and 30,246.85

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Solution

The fourth proportional to 42,868.05, 64,400.62 and 30,246.85 is: 45,439.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,868.05 : 64,400.62 = 30,246.85 : x
  2. Step 2: Convert to fraction form
    42,868.05/64,400.62 = 30,246.85/x
  3. Step 3: Cross multiply
    42,868.05x = 64,400.62 × 30,246.85
  4. Step 4: Simplify right side
    42,868.05x = 1,947,915,893.05
  5. Step 5: Solve for x
    x = 1,947,915,893.05/42,868.05
  6. Step 6: Final answer
    x = 45,439.81

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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.