Home / 78,352.24-108,109.20-46,531.84

Finding the Fourth Proportional to 78,352.24, 108,109.20 and 46,531.84

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Solution

The fourth proportional to 78,352.24, 108,109.20 and 46,531.84 is: 64,203.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,352.24 : 108,109.20 = 46,531.84 : x
  2. Step 2: Convert to fraction form
    78,352.24/108,109.20 = 46,531.84/x
  3. Step 3: Cross multiply
    78,352.24x = 108,109.20 × 46,531.84
  4. Step 4: Simplify right side
    78,352.24x = 5,030,519,996.93
  5. Step 5: Solve for x
    x = 5,030,519,996.93/78,352.24
  6. Step 6: Final answer
    x = 64,203.91

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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.