Home / 67,288.32-100,899.63-38,433.59

Finding the Fourth Proportional to 67,288.32, 100,899.63 and 38,433.59

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Solution

The fourth proportional to 67,288.32, 100,899.63 and 38,433.59 is: 57,631.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,288.32 : 100,899.63 = 38,433.59 : x
  2. Step 2: Convert to fraction form
    67,288.32/100,899.63 = 38,433.59/x
  3. Step 3: Cross multiply
    67,288.32x = 100,899.63 × 38,433.59
  4. Step 4: Simplify right side
    67,288.32x = 3,877,934,506.07
  5. Step 5: Solve for x
    x = 3,877,934,506.07/67,288.32
  6. Step 6: Final answer
    x = 57,631.61

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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.