Home / 42,683.16-63,972.90-30,206.86

Finding the Fourth Proportional to 42,683.16, 63,972.90 and 30,206.86

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Solution

The fourth proportional to 42,683.16, 63,972.90 and 30,206.86 is: 45,273.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,683.16 : 63,972.90 = 30,206.86 : x
  2. Step 2: Convert to fraction form
    42,683.16/63,972.90 = 30,206.86/x
  3. Step 3: Cross multiply
    42,683.16x = 63,972.90 × 30,206.86
  4. Step 4: Simplify right side
    42,683.16x = 1,932,420,434.09
  5. Step 5: Solve for x
    x = 1,932,420,434.09/42,683.16
  6. Step 6: Final answer
    x = 45,273.60

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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.