Home / 91,854.21-137,718.67-46,764.75

Finding the Fourth Proportional to 91,854.21, 137,718.67 and 46,764.75

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Solution

The fourth proportional to 91,854.21, 137,718.67 and 46,764.75 is: 70,115.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,854.21 : 137,718.67 = 46,764.75 : x
  2. Step 2: Convert to fraction form
    91,854.21/137,718.67 = 46,764.75/x
  3. Step 3: Cross multiply
    91,854.21x = 137,718.67 × 46,764.75
  4. Step 4: Simplify right side
    91,854.21x = 6,440,379,172.88
  5. Step 5: Solve for x
    x = 6,440,379,172.88/91,854.21
  6. Step 6: Final answer
    x = 70,115.23

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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.