Home / 91,444.40-137,166.60-29,121.20

Finding the Fourth Proportional to 91,444.40, 137,166.60 and 29,121.20

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Solution

The fourth proportional to 91,444.40, 137,166.60 and 29,121.20 is: 43,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,444.40 : 137,166.60 = 29,121.20 : x
  2. Step 2: Convert to fraction form
    91,444.40/137,166.60 = 29,121.20/x
  3. Step 3: Cross multiply
    91,444.40x = 137,166.60 × 29,121.20
  4. Step 4: Simplify right side
    91,444.40x = 3,994,455,991.92
  5. Step 5: Solve for x
    x = 3,994,455,991.92/91,444.40
  6. Step 6: Final answer
    x = 43,681.80

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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.