Home / 91,756.10-137,286.39-54,336.26

Finding the Fourth Proportional to 91,756.10, 137,286.39 and 54,336.26

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Solution

The fourth proportional to 91,756.10, 137,286.39 and 54,336.26 is: 81,298.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,756.10 : 137,286.39 = 54,336.26 : x
  2. Step 2: Convert to fraction form
    91,756.10/137,286.39 = 54,336.26/x
  3. Step 3: Cross multiply
    91,756.10x = 137,286.39 × 54,336.26
  4. Step 4: Simplify right side
    91,756.10x = 7,459,628,981.50
  5. Step 5: Solve for x
    x = 7,459,628,981.50/91,756.10
  6. Step 6: Final answer
    x = 81,298.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.