Home / 66,020.46-91,100.05-42,161.10

Finding the Fourth Proportional to 66,020.46, 91,100.05 and 42,161.10

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Solution

The fourth proportional to 66,020.46, 91,100.05 and 42,161.10 is: 58,177.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,020.46 : 91,100.05 = 42,161.10 : x
  2. Step 2: Convert to fraction form
    66,020.46/91,100.05 = 42,161.10/x
  3. Step 3: Cross multiply
    66,020.46x = 91,100.05 × 42,161.10
  4. Step 4: Simplify right side
    66,020.46x = 3,840,878,318.06
  5. Step 5: Solve for x
    x = 3,840,878,318.06/66,020.46
  6. Step 6: Final answer
    x = 58,177.09

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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.