Home / 90,764.01-125,254.47-50,477.78

Finding the Fourth Proportional to 90,764.01, 125,254.47 and 50,477.78

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Solution

The fourth proportional to 90,764.01, 125,254.47 and 50,477.78 is: 69,659.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,764.01 : 125,254.47 = 50,477.78 : x
  2. Step 2: Convert to fraction form
    90,764.01/125,254.47 = 50,477.78/x
  3. Step 3: Cross multiply
    90,764.01x = 125,254.47 × 50,477.78
  4. Step 4: Simplify right side
    90,764.01x = 6,322,566,954.40
  5. Step 5: Solve for x
    x = 6,322,566,954.40/90,764.01
  6. Step 6: Final answer
    x = 69,659.41

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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.