Home / 87,606.55-120,899.53-49,366.45

Finding the Fourth Proportional to 87,606.55, 120,899.53 and 49,366.45

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Solution

The fourth proportional to 87,606.55, 120,899.53 and 49,366.45 is: 68,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,606.55 : 120,899.53 = 49,366.45 : x
  2. Step 2: Convert to fraction form
    87,606.55/120,899.53 = 49,366.45/x
  3. Step 3: Cross multiply
    87,606.55x = 120,899.53 × 49,366.45
  4. Step 4: Simplify right side
    87,606.55x = 5,968,380,602.77
  5. Step 5: Solve for x
    x = 5,968,380,602.77/87,606.55
  6. Step 6: Final answer
    x = 68,127.10

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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.