Home / 86,566.20-129,849.30-47,200.20

Finding the Fourth Proportional to 86,566.20, 129,849.30 and 47,200.20

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Solution

The fourth proportional to 86,566.20, 129,849.30 and 47,200.20 is: 70,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,566.20 : 129,849.30 = 47,200.20 : x
  2. Step 2: Convert to fraction form
    86,566.20/129,849.30 = 47,200.20/x
  3. Step 3: Cross multiply
    86,566.20x = 129,849.30 × 47,200.20
  4. Step 4: Simplify right side
    86,566.20x = 6,128,912,929.86
  5. Step 5: Solve for x
    x = 6,128,912,929.86/86,566.20
  6. Step 6: Final answer
    x = 70,800.30

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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.