Home / 90,989.52-125,548.92-50,702.28

Finding the Fourth Proportional to 90,989.52, 125,548.92 and 50,702.28

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Solution

The fourth proportional to 90,989.52, 125,548.92 and 50,702.28 is: 69,959.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,989.52 : 125,548.92 = 50,702.28 : x
  2. Step 2: Convert to fraction form
    90,989.52/125,548.92 = 50,702.28/x
  3. Step 3: Cross multiply
    90,989.52x = 125,548.92 × 50,702.28
  4. Step 4: Simplify right side
    90,989.52x = 6,365,616,495.54
  5. Step 5: Solve for x
    x = 6,365,616,495.54/90,989.52
  6. Step 6: Final answer
    x = 69,959.89

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1.5x scale

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.