Home / 89,436.34-133,979.22-51,917.74

Finding the Fourth Proportional to 89,436.34, 133,979.22 and 51,917.74

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Solution

The fourth proportional to 89,436.34, 133,979.22 and 51,917.74 is: 77,774.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,436.34 : 133,979.22 = 51,917.74 : x
  2. Step 2: Convert to fraction form
    89,436.34/133,979.22 = 51,917.74/x
  3. Step 3: Cross multiply
    89,436.34x = 133,979.22 × 51,917.74
  4. Step 4: Simplify right side
    89,436.34x = 6,955,898,309.36
  5. Step 5: Solve for x
    x = 6,955,898,309.36/89,436.34
  6. Step 6: Final answer
    x = 77,774.85

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1.5x scale

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.