Home / 90,969.10-125,522.40-50,673.76

Finding the Fourth Proportional to 90,969.10, 125,522.40 and 50,673.76

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Solution

The fourth proportional to 90,969.10, 125,522.40 and 50,673.76 is: 69,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,969.10 : 125,522.40 = 50,673.76 : x
  2. Step 2: Convert to fraction form
    90,969.10/125,522.40 = 50,673.76/x
  3. Step 3: Cross multiply
    90,969.10x = 125,522.40 × 50,673.76
  4. Step 4: Simplify right side
    90,969.10x = 6,360,691,972.22
  5. Step 5: Solve for x
    x = 6,360,691,972.22/90,969.10
  6. Step 6: Final answer
    x = 69,921.46

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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.