Home / 90,615.44-125,045.84-50,331.78

Finding the Fourth Proportional to 90,615.44, 125,045.84 and 50,331.78

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Solution

The fourth proportional to 90,615.44, 125,045.84 and 50,331.78 is: 69,455.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,615.44 : 125,045.84 = 50,331.78 : x
  2. Step 2: Convert to fraction form
    90,615.44/125,045.84 = 50,331.78/x
  3. Step 3: Cross multiply
    90,615.44x = 125,045.84 × 50,331.78
  4. Step 4: Simplify right side
    90,615.44x = 6,293,779,708.80
  5. Step 5: Solve for x
    x = 6,293,779,708.80/90,615.44
  6. Step 6: Final answer
    x = 69,455.93

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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.