Home / 99,916.36-137,880.42-54,593.32

Finding the Fourth Proportional to 99,916.36, 137,880.42 and 54,593.32

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Solution

The fourth proportional to 99,916.36, 137,880.42 and 54,593.32 is: 75,336.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,916.36 : 137,880.42 = 54,593.32 : x
  2. Step 2: Convert to fraction form
    99,916.36/137,880.42 = 54,593.32/x
  3. Step 3: Cross multiply
    99,916.36x = 137,880.42 × 54,593.32
  4. Step 4: Simplify right side
    99,916.36x = 7,527,349,890.79
  5. Step 5: Solve for x
    x = 7,527,349,890.79/99,916.36
  6. Step 6: Final answer
    x = 75,336.51

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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.