Home / 77,080.46-115,618.23-34,929.68

Finding the Fourth Proportional to 77,080.46, 115,618.23 and 34,929.68

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Solution

The fourth proportional to 77,080.46, 115,618.23 and 34,929.68 is: 52,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,080.46 : 115,618.23 = 34,929.68 : x
  2. Step 2: Convert to fraction form
    77,080.46/115,618.23 = 34,929.68/x
  3. Step 3: Cross multiply
    77,080.46x = 115,618.23 × 34,929.68
  4. Step 4: Simplify right side
    77,080.46x = 4,038,507,197.98
  5. Step 5: Solve for x
    x = 4,038,507,197.98/77,080.46
  6. Step 6: Final answer
    x = 52,393.40

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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.