Home / 66,911.28-100,366.80-36,924.12

Finding the Fourth Proportional to 66,911.28, 100,366.80 and 36,924.12

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Solution

The fourth proportional to 66,911.28, 100,366.80 and 36,924.12 is: 55,386.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,911.28 : 100,366.80 = 36,924.12 : x
  2. Step 2: Convert to fraction form
    66,911.28/100,366.80 = 36,924.12/x
  3. Step 3: Cross multiply
    66,911.28x = 100,366.80 × 36,924.12
  4. Step 4: Simplify right side
    66,911.28x = 3,705,955,767.22
  5. Step 5: Solve for x
    x = 3,705,955,767.22/66,911.28
  6. Step 6: Final answer
    x = 55,386.11

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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.