Home / 99,723.36-137,682-62,048.64

Finding the Fourth Proportional to 99,723.36, 137,682 and 62,048.64

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Solution

The fourth proportional to 99,723.36, 137,682 and 62,048.64 is: 85,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,723.36 : 137,682 = 62,048.64 : x
  2. Step 2: Convert to fraction form
    99,723.36/137,682 = 62,048.64/x
  3. Step 3: Cross multiply
    99,723.36x = 137,682 × 62,048.64
  4. Step 4: Simplify right side
    99,723.36x = 8,542,980,852.48
  5. Step 5: Solve for x
    x = 8,542,980,852.48/99,723.36
  6. Step 6: Final answer
    x = 85,666.80

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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.