Home / 99,317.45-137,060.79-53,998.49

Finding the Fourth Proportional to 99,317.45, 137,060.79 and 53,998.49

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Solution

The fourth proportional to 99,317.45, 137,060.79 and 53,998.49 is: 74,519.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,317.45 : 137,060.79 = 53,998.49 : x
  2. Step 2: Convert to fraction form
    99,317.45/137,060.79 = 53,998.49/x
  3. Step 3: Cross multiply
    99,317.45x = 137,060.79 × 53,998.49
  4. Step 4: Simplify right side
    99,317.45x = 7,401,074,742.91
  5. Step 5: Solve for x
    x = 7,401,074,742.91/99,317.45
  6. Step 6: Final answer
    x = 74,519.38

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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.