Home / 77,267.20-115,900.80-47,742.70

Finding the Fourth Proportional to 77,267.20, 115,900.80 and 47,742.70

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Solution

The fourth proportional to 77,267.20, 115,900.80 and 47,742.70 is: 71,614.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,267.20 : 115,900.80 = 47,742.70 : x
  2. Step 2: Convert to fraction form
    77,267.20/115,900.80 = 47,742.70/x
  3. Step 3: Cross multiply
    77,267.20x = 115,900.80 × 47,742.70
  4. Step 4: Simplify right side
    77,267.20x = 5,533,417,124.16
  5. Step 5: Solve for x
    x = 5,533,417,124.16/77,267.20
  6. Step 6: Final answer
    x = 71,614.05

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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.