Home / 83,772.06-125,699.10-39,403.32

Finding the Fourth Proportional to 83,772.06, 125,699.10 and 39,403.32

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Solution

The fourth proportional to 83,772.06, 125,699.10 and 39,403.32 is: 59,124.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,772.06 : 125,699.10 = 39,403.32 : x
  2. Step 2: Convert to fraction form
    83,772.06/125,699.10 = 39,403.32/x
  3. Step 3: Cross multiply
    83,772.06x = 125,699.10 × 39,403.32
  4. Step 4: Simplify right side
    83,772.06x = 4,952,961,861.01
  5. Step 5: Solve for x
    x = 4,952,961,861.01/83,772.06
  6. Step 6: Final answer
    x = 59,124.27

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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.