Home / 77,070.88-115,598.04-52,270.12

Finding the Fourth Proportional to 77,070.88, 115,598.04 and 52,270.12

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Solution

The fourth proportional to 77,070.88, 115,598.04 and 52,270.12 is: 78,399.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,070.88 : 115,598.04 = 52,270.12 : x
  2. Step 2: Convert to fraction form
    77,070.88/115,598.04 = 52,270.12/x
  3. Step 3: Cross multiply
    77,070.88x = 115,598.04 × 52,270.12
  4. Step 4: Simplify right side
    77,070.88x = 6,042,323,422.56
  5. Step 5: Solve for x
    x = 6,042,323,422.56/77,070.88
  6. Step 6: Final answer
    x = 78,399.56

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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.