Home / 91,426.40-137,194.08-40,821.49

Finding the Fourth Proportional to 91,426.40, 137,194.08 and 40,821.49

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Solution

The fourth proportional to 91,426.40, 137,194.08 and 40,821.49 is: 61,256.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,426.40 : 137,194.08 = 40,821.49 : x
  2. Step 2: Convert to fraction form
    91,426.40/137,194.08 = 40,821.49/x
  3. Step 3: Cross multiply
    91,426.40x = 137,194.08 × 40,821.49
  4. Step 4: Simplify right side
    91,426.40x = 5,600,466,078.81
  5. Step 5: Solve for x
    x = 5,600,466,078.81/91,426.40
  6. Step 6: Final answer
    x = 61,256.55

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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.