Home / 90,364.05-124,702.65-50,078.46

Finding the Fourth Proportional to 90,364.05, 124,702.65 and 50,078.46

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Solution

The fourth proportional to 90,364.05, 124,702.65 and 50,078.46 is: 69,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,364.05 : 124,702.65 = 50,078.46 : x
  2. Step 2: Convert to fraction form
    90,364.05/124,702.65 = 50,078.46/x
  3. Step 3: Cross multiply
    90,364.05x = 124,702.65 × 50,078.46
  4. Step 4: Simplify right side
    90,364.05x = 6,244,916,669.92
  5. Step 5: Solve for x
    x = 6,244,916,669.92/90,364.05
  6. Step 6: Final answer
    x = 69,108.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.