Home / 76,948.40-115,422.60-63,815.60

Finding the Fourth Proportional to 76,948.40, 115,422.60 and 63,815.60

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Solution

The fourth proportional to 76,948.40, 115,422.60 and 63,815.60 is: 95,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,948.40 : 115,422.60 = 63,815.60 : x
  2. Step 2: Convert to fraction form
    76,948.40/115,422.60 = 63,815.60/x
  3. Step 3: Cross multiply
    76,948.40x = 115,422.60 × 63,815.60
  4. Step 4: Simplify right side
    76,948.40x = 7,365,762,472.56
  5. Step 5: Solve for x
    x = 7,365,762,472.56/76,948.40
  6. Step 6: Final answer
    x = 95,723.40

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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.