Home / 76,962.80-115,444.20-47,567.60

Finding the Fourth Proportional to 76,962.80, 115,444.20 and 47,567.60

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Solution

The fourth proportional to 76,962.80, 115,444.20 and 47,567.60 is: 71,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,962.80 : 115,444.20 = 47,567.60 : x
  2. Step 2: Convert to fraction form
    76,962.80/115,444.20 = 47,567.60/x
  3. Step 3: Cross multiply
    76,962.80x = 115,444.20 × 47,567.60
  4. Step 4: Simplify right side
    76,962.80x = 5,491,403,527.92
  5. Step 5: Solve for x
    x = 5,491,403,527.92/76,962.80
  6. Step 6: Final answer
    x = 71,351.40

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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.