Home / 90,447.89-124,809.84-50,161.53

Finding the Fourth Proportional to 90,447.89, 124,809.84 and 50,161.53

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Solution

The fourth proportional to 90,447.89, 124,809.84 and 50,161.53 is: 69,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,447.89 : 124,809.84 = 50,161.53 : x
  2. Step 2: Convert to fraction form
    90,447.89/124,809.84 = 50,161.53/x
  3. Step 3: Cross multiply
    90,447.89x = 124,809.84 × 50,161.53
  4. Step 4: Simplify right side
    90,447.89x = 6,260,652,533.46
  5. Step 5: Solve for x
    x = 6,260,652,533.46/90,447.89
  6. Step 6: Final answer
    x = 69,218.34

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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.