Home / 90,711.40-125,172.66-52,468.06

Finding the Fourth Proportional to 90,711.40, 125,172.66 and 52,468.06

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Solution

The fourth proportional to 90,711.40, 125,172.66 and 52,468.06 is: 72,400.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,711.40 : 125,172.66 = 52,468.06 : x
  2. Step 2: Convert to fraction form
    90,711.40/125,172.66 = 52,468.06/x
  3. Step 3: Cross multiply
    90,711.40x = 125,172.66 × 52,468.06
  4. Step 4: Simplify right side
    90,711.40x = 6,567,566,635.24
  5. Step 5: Solve for x
    x = 6,567,566,635.24/90,711.40
  6. Step 6: Final answer
    x = 72,400.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.