Home / 91,379.12-137,083.08-29,063.60

Finding the Fourth Proportional to 91,379.12, 137,083.08 and 29,063.60

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Solution

The fourth proportional to 91,379.12, 137,083.08 and 29,063.60 is: 43,599.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,379.12 : 137,083.08 = 29,063.60 : x
  2. Step 2: Convert to fraction form
    91,379.12/137,083.08 = 29,063.60/x
  3. Step 3: Cross multiply
    91,379.12x = 137,083.08 × 29,063.60
  4. Step 4: Simplify right side
    91,379.12x = 3,984,127,803.89
  5. Step 5: Solve for x
    x = 3,984,127,803.89/91,379.12
  6. Step 6: Final answer
    x = 43,599.98

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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.