Home / 108,587.87-162,840.80-52,409.31

Finding the Fourth Proportional to 108,587.87, 162,840.80 and 52,409.31

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Solution

The fourth proportional to 108,587.87, 162,840.80 and 52,409.31 is: 78,594.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,587.87 : 162,840.80 = 52,409.31 : x
  2. Step 2: Convert to fraction form
    108,587.87/162,840.80 = 52,409.31/x
  3. Step 3: Cross multiply
    108,587.87x = 162,840.80 × 52,409.31
  4. Step 4: Simplify right side
    108,587.87x = 8,534,373,705.80
  5. Step 5: Solve for x
    x = 8,534,373,705.80/108,587.87
  6. Step 6: Final answer
    x = 78,594.18

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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.