Home / 90,920.82-125,461.73-50,638.32

Finding the Fourth Proportional to 90,920.82, 125,461.73 and 50,638.32

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Solution

The fourth proportional to 90,920.82, 125,461.73 and 50,638.32 is: 69,875.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,920.82 : 125,461.73 = 50,638.32 : x
  2. Step 2: Convert to fraction form
    90,920.82/125,461.73 = 50,638.32/x
  3. Step 3: Cross multiply
    90,920.82x = 125,461.73 × 50,638.32
  4. Step 4: Simplify right side
    90,920.82x = 6,353,171,671.74
  5. Step 5: Solve for x
    x = 6,353,171,671.74/90,920.82
  6. Step 6: Final answer
    x = 69,875.88

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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.