Home / 70,743.59-97,766.16-57,976.64

Finding the Fourth Proportional to 70,743.59, 97,766.16 and 57,976.64

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Solution

The fourth proportional to 70,743.59, 97,766.16 and 57,976.64 is: 80,122.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,743.59 : 97,766.16 = 57,976.64 : x
  2. Step 2: Convert to fraction form
    70,743.59/97,766.16 = 57,976.64/x
  3. Step 3: Cross multiply
    70,743.59x = 97,766.16 × 57,976.64
  4. Step 4: Simplify right side
    70,743.59x = 5,668,152,973.67
  5. Step 5: Solve for x
    x = 5,668,152,973.67/70,743.59
  6. Step 6: Final answer
    x = 80,122.50

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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.