Home / 72,733.16-100,257.38-66,631.42

Finding the Fourth Proportional to 72,733.16, 100,257.38 and 66,631.42

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Solution

The fourth proportional to 72,733.16, 100,257.38 and 66,631.42 is: 91,846.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,733.16 : 100,257.38 = 66,631.42 : x
  2. Step 2: Convert to fraction form
    72,733.16/100,257.38 = 66,631.42/x
  3. Step 3: Cross multiply
    72,733.16x = 100,257.38 × 66,631.42
  4. Step 4: Simplify right side
    72,733.16x = 6,680,291,594.88
  5. Step 5: Solve for x
    x = 6,680,291,594.88/72,733.16
  6. Step 6: Final answer
    x = 91,846.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.