Home / 99,321.09-137,064.60-53,998.98

Finding the Fourth Proportional to 99,321.09, 137,064.60 and 53,998.98

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Solution

The fourth proportional to 99,321.09, 137,064.60 and 53,998.98 is: 74,519.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,321.09 : 137,064.60 = 53,998.98 : x
  2. Step 2: Convert to fraction form
    99,321.09/137,064.60 = 53,998.98/x
  3. Step 3: Cross multiply
    99,321.09x = 137,064.60 × 53,998.98
  4. Step 4: Simplify right side
    99,321.09x = 7,401,348,594.11
  5. Step 5: Solve for x
    x = 7,401,348,594.11/99,321.09
  6. Step 6: Final answer
    x = 74,519.41

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1.5x scale

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.