Home / 99,621.46-137,476.74-54,299.45

Finding the Fourth Proportional to 99,621.46, 137,476.74 and 54,299.45

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Solution

The fourth proportional to 99,621.46, 137,476.74 and 54,299.45 is: 74,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,621.46 : 137,476.74 = 54,299.45 : x
  2. Step 2: Convert to fraction form
    99,621.46/137,476.74 = 54,299.45/x
  3. Step 3: Cross multiply
    99,621.46x = 137,476.74 × 54,299.45
  4. Step 4: Simplify right side
    99,621.46x = 7,464,911,369.79
  5. Step 5: Solve for x
    x = 7,464,911,369.79/99,621.46
  6. Step 6: Final answer
    x = 74,932.76

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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.