Home / 87,747.01-121,090.74-49,506.50

Finding the Fourth Proportional to 87,747.01, 121,090.74 and 49,506.50

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Solution

The fourth proportional to 87,747.01, 121,090.74 and 49,506.50 is: 68,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,747.01 : 121,090.74 = 49,506.50 : x
  2. Step 2: Convert to fraction form
    87,747.01/121,090.74 = 49,506.50/x
  3. Step 3: Cross multiply
    87,747.01x = 121,090.74 × 49,506.50
  4. Step 4: Simplify right side
    87,747.01x = 5,994,778,719.81
  5. Step 5: Solve for x
    x = 5,994,778,719.81/87,747.01
  6. Step 6: Final answer
    x = 68,318.89

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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.