Home / 77,044.80-115,567.20-47,366.40

Finding the Fourth Proportional to 77,044.80, 115,567.20 and 47,366.40

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Solution

The fourth proportional to 77,044.80, 115,567.20 and 47,366.40 is: 71,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,044.80 : 115,567.20 = 47,366.40 : x
  2. Step 2: Convert to fraction form
    77,044.80/115,567.20 = 47,366.40/x
  3. Step 3: Cross multiply
    77,044.80x = 115,567.20 × 47,366.40
  4. Step 4: Simplify right side
    77,044.80x = 5,474,002,222.08
  5. Step 5: Solve for x
    x = 5,474,002,222.08/77,044.80
  6. Step 6: Final answer
    x = 71,049.60

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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.