Home / 99,615.40-137,465.26-54,292.43

Finding the Fourth Proportional to 99,615.40, 137,465.26 and 54,292.43

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Solution

The fourth proportional to 99,615.40, 137,465.26 and 54,292.43 is: 74,921.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,615.40 : 137,465.26 = 54,292.43 : x
  2. Step 2: Convert to fraction form
    99,615.40/137,465.26 = 54,292.43/x
  3. Step 3: Cross multiply
    99,615.40x = 137,465.26 × 54,292.43
  4. Step 4: Simplify right side
    99,615.40x = 7,463,323,213.91
  5. Step 5: Solve for x
    x = 7,463,323,213.91/99,615.40
  6. Step 6: Final answer
    x = 74,921.38

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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.