Home / 77,276.20-115,695.60-68,528.20

Finding the Fourth Proportional to 77,276.20, 115,695.60 and 68,528.20

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Solution

The fourth proportional to 77,276.20, 115,695.60 and 68,528.20 is: 102,598.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,276.20 : 115,695.60 = 68,528.20 : x
  2. Step 2: Convert to fraction form
    77,276.20/115,695.60 = 68,528.20/x
  3. Step 3: Cross multiply
    77,276.20x = 115,695.60 × 68,528.20
  4. Step 4: Simplify right side
    77,276.20x = 7,928,411,215.92
  5. Step 5: Solve for x
    x = 7,928,411,215.92/77,276.20
  6. Step 6: Final answer
    x = 102,598.36

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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.