Home / 91,410.09-137,059.74-59,781.96

Finding the Fourth Proportional to 91,410.09, 137,059.74 and 59,781.96

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Solution

The fourth proportional to 91,410.09, 137,059.74 and 59,781.96 is: 89,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,410.09 : 137,059.74 = 59,781.96 : x
  2. Step 2: Convert to fraction form
    91,410.09/137,059.74 = 59,781.96/x
  3. Step 3: Cross multiply
    91,410.09x = 137,059.74 × 59,781.96
  4. Step 4: Simplify right side
    91,410.09x = 8,193,699,894.29
  5. Step 5: Solve for x
    x = 8,193,699,894.29/91,410.09
  6. Step 6: Final answer
    x = 89,636.71

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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.