Home / 99,717.60-137,613.36-57,284.64

Finding the Fourth Proportional to 99,717.60, 137,613.36 and 57,284.64

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Solution

The fourth proportional to 99,717.60, 137,613.36 and 57,284.64 is: 79,054.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,717.60 : 137,613.36 = 57,284.64 : x
  2. Step 2: Convert to fraction form
    99,717.60/137,613.36 = 57,284.64/x
  3. Step 3: Cross multiply
    99,717.60x = 137,613.36 × 57,284.64
  4. Step 4: Simplify right side
    99,717.60x = 7,883,131,786.79
  5. Step 5: Solve for x
    x = 7,883,131,786.79/99,717.60
  6. Step 6: Final answer
    x = 79,054.57

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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.