Home / 78,965.10-108,971.66-44,973.59

Finding the Fourth Proportional to 78,965.10, 108,971.66 and 44,973.59

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Solution

The fourth proportional to 78,965.10, 108,971.66 and 44,973.59 is: 62,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,965.10 : 108,971.66 = 44,973.59 : x
  2. Step 2: Convert to fraction form
    78,965.10/108,971.66 = 44,973.59/x
  3. Step 3: Cross multiply
    78,965.10x = 108,971.66 × 44,973.59
  4. Step 4: Simplify right side
    78,965.10x = 4,900,846,213.60
  5. Step 5: Solve for x
    x = 4,900,846,213.60/78,965.10
  6. Step 6: Final answer
    x = 62,063.45

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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.