Home / 69,989.12-96,560.88-48,760.64

Finding the Fourth Proportional to 69,989.12, 96,560.88 and 48,760.64

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Solution

The fourth proportional to 69,989.12, 96,560.88 and 48,760.64 is: 67,272.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,989.12 : 96,560.88 = 48,760.64 : x
  2. Step 2: Convert to fraction form
    69,989.12/96,560.88 = 48,760.64/x
  3. Step 3: Cross multiply
    69,989.12x = 96,560.88 × 48,760.64
  4. Step 4: Simplify right side
    69,989.12x = 4,708,370,307.76
  5. Step 5: Solve for x
    x = 4,708,370,307.76/69,989.12
  6. Step 6: Final answer
    x = 67,272.89

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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.