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Finding the Fourth Proportional to 89,889.80, 134,784.07 and 29,886.08

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Solution

The fourth proportional to 89,889.80, 134,784.07 and 29,886.08 is: 44,812.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,889.80 : 134,784.07 = 29,886.08 : x
  2. Step 2: Convert to fraction form
    89,889.80/134,784.07 = 29,886.08/x
  3. Step 3: Cross multiply
    89,889.80x = 134,784.07 × 29,886.08
  4. Step 4: Simplify right side
    89,889.80x = 4,028,166,750.11
  5. Step 5: Solve for x
    x = 4,028,166,750.11/89,889.80
  6. Step 6: Final answer
    x = 44,812.28

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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.