Home / 89,981.80-134,927.40-29,989.02

Finding the Fourth Proportional to 89,981.80, 134,927.40 and 29,989.02

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Solution

The fourth proportional to 89,981.80, 134,927.40 and 29,989.02 is: 44,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.80 : 134,927.40 = 29,989.02 : x
  2. Step 2: Convert to fraction form
    89,981.80/134,927.40 = 29,989.02/x
  3. Step 3: Cross multiply
    89,981.80x = 134,927.40 × 29,989.02
  4. Step 4: Simplify right side
    89,981.80x = 4,046,340,497.15
  5. Step 5: Solve for x
    x = 4,046,340,497.15/89,981.80
  6. Step 6: Final answer
    x = 44,968.43

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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.