Home / 91,305.43-125,999.15-51,019.52

Finding the Fourth Proportional to 91,305.43, 125,999.15 and 51,019.52

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Solution

The fourth proportional to 91,305.43, 125,999.15 and 51,019.52 is: 70,405.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,305.43 : 125,999.15 = 51,019.52 : x
  2. Step 2: Convert to fraction form
    91,305.43/125,999.15 = 51,019.52/x
  3. Step 3: Cross multiply
    91,305.43x = 125,999.15 × 51,019.52
  4. Step 4: Simplify right side
    91,305.43x = 6,428,415,977.06
  5. Step 5: Solve for x
    x = 6,428,415,977.06/91,305.43
  6. Step 6: Final answer
    x = 70,405.63

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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.