Home / 99,301.70-137,039.01-53,982.72

Finding the Fourth Proportional to 99,301.70, 137,039.01 and 53,982.72

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Solution

The fourth proportional to 99,301.70, 137,039.01 and 53,982.72 is: 74,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,301.70 : 137,039.01 = 53,982.72 : x
  2. Step 2: Convert to fraction form
    99,301.70/137,039.01 = 53,982.72/x
  3. Step 3: Cross multiply
    99,301.70x = 137,039.01 × 53,982.72
  4. Step 4: Simplify right side
    99,301.70x = 7,397,738,303.47
  5. Step 5: Solve for x
    x = 7,397,738,303.47/99,301.70
  6. Step 6: Final answer
    x = 74,497.60

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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.