Home / 90,686.52-125,155.13-50,406.84

Finding the Fourth Proportional to 90,686.52, 125,155.13 and 50,406.84

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Solution

The fourth proportional to 90,686.52, 125,155.13 and 50,406.84 is: 69,565.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,686.52 : 125,155.13 = 50,406.84 : x
  2. Step 2: Convert to fraction form
    90,686.52/125,155.13 = 50,406.84/x
  3. Step 3: Cross multiply
    90,686.52x = 125,155.13 × 50,406.84
  4. Step 4: Simplify right side
    90,686.52x = 6,308,674,361.06
  5. Step 5: Solve for x
    x = 6,308,674,361.06/90,686.52
  6. Step 6: Final answer
    x = 69,565.73

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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.