Home / 89,723.80-134,877.30-76,893.40

Finding the Fourth Proportional to 89,723.80, 134,877.30 and 76,893.40

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Solution

The fourth proportional to 89,723.80, 134,877.30 and 76,893.40 is: 115,590.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,723.80 : 134,877.30 = 76,893.40 : x
  2. Step 2: Convert to fraction form
    89,723.80/134,877.30 = 76,893.40/x
  3. Step 3: Cross multiply
    89,723.80x = 134,877.30 × 76,893.40
  4. Step 4: Simplify right side
    89,723.80x = 10,371,174,179.82
  5. Step 5: Solve for x
    x = 10,371,174,179.82/89,723.80
  6. Step 6: Final answer
    x = 115,590.00

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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.