Home / 66,458.25-91,660.55-42,587.14

Finding the Fourth Proportional to 66,458.25, 91,660.55 and 42,587.14

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Solution

The fourth proportional to 66,458.25, 91,660.55 and 42,587.14 is: 58,737.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,458.25 : 91,660.55 = 42,587.14 : x
  2. Step 2: Convert to fraction form
    66,458.25/91,660.55 = 42,587.14/x
  3. Step 3: Cross multiply
    66,458.25x = 91,660.55 × 42,587.14
  4. Step 4: Simplify right side
    66,458.25x = 3,903,560,662.90
  5. Step 5: Solve for x
    x = 3,903,560,662.90/66,458.25
  6. Step 6: Final answer
    x = 58,737.04

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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.