Home / 42,683.20-64,024.80-30,217.30

Finding the Fourth Proportional to 42,683.20, 64,024.80 and 30,217.30

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Solution

The fourth proportional to 42,683.20, 64,024.80 and 30,217.30 is: 45,325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,683.20 : 64,024.80 = 30,217.30 : x
  2. Step 2: Convert to fraction form
    42,683.20/64,024.80 = 30,217.30/x
  3. Step 3: Cross multiply
    42,683.20x = 64,024.80 × 30,217.30
  4. Step 4: Simplify right side
    42,683.20x = 1,934,656,589.04
  5. Step 5: Solve for x
    x = 1,934,656,589.04/42,683.20
  6. Step 6: Final answer
    x = 45,325.95

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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.