Home / 66,658.24-91,988.46-38,363.92

Finding the Fourth Proportional to 66,658.24, 91,988.46 and 38,363.92

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Solution

The fourth proportional to 66,658.24, 91,988.46 and 38,363.92 is: 52,942.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,658.24 : 91,988.46 = 38,363.92 : x
  2. Step 2: Convert to fraction form
    66,658.24/91,988.46 = 38,363.92/x
  3. Step 3: Cross multiply
    66,658.24x = 91,988.46 × 38,363.92
  4. Step 4: Simplify right side
    66,658.24x = 3,529,037,920.36
  5. Step 5: Solve for x
    x = 3,529,037,920.36/66,658.24
  6. Step 6: Final answer
    x = 52,942.26

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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.