Home / 90,816.32-125,327.14-50,531.78

Finding the Fourth Proportional to 90,816.32, 125,327.14 and 50,531.78

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Solution

The fourth proportional to 90,816.32, 125,327.14 and 50,531.78 is: 69,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,816.32 : 125,327.14 = 50,531.78 : x
  2. Step 2: Convert to fraction form
    90,816.32/125,327.14 = 50,531.78/x
  3. Step 3: Cross multiply
    90,816.32x = 125,327.14 × 50,531.78
  4. Step 4: Simplify right side
    90,816.32x = 6,333,003,466.51
  5. Step 5: Solve for x
    x = 6,333,003,466.51/90,816.32
  6. Step 6: Final answer
    x = 69,734.20

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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.