Home / 99,295.22-137,021.72-53,972.94

Finding the Fourth Proportional to 99,295.22, 137,021.72 and 53,972.94

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Solution

The fourth proportional to 99,295.22, 137,021.72 and 53,972.94 is: 74,479.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,295.22 : 137,021.72 = 53,972.94 : x
  2. Step 2: Convert to fraction form
    99,295.22/137,021.72 = 53,972.94/x
  3. Step 3: Cross multiply
    99,295.22x = 137,021.72 × 53,972.94
  4. Step 4: Simplify right side
    99,295.22x = 7,395,465,072.26
  5. Step 5: Solve for x
    x = 7,395,465,072.26/99,295.22
  6. Step 6: Final answer
    x = 74,479.57

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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.