Home / 90,897.39-125,444.43-55,090.80

Finding the Fourth Proportional to 90,897.39, 125,444.43 and 55,090.80

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Solution

The fourth proportional to 90,897.39, 125,444.43 and 55,090.80 is: 76,028.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,897.39 : 125,444.43 = 55,090.80 : x
  2. Step 2: Convert to fraction form
    90,897.39/125,444.43 = 55,090.80/x
  3. Step 3: Cross multiply
    90,897.39x = 125,444.43 × 55,090.80
  4. Step 4: Simplify right side
    90,897.39x = 6,910,834,004.24
  5. Step 5: Solve for x
    x = 6,910,834,004.24/90,897.39
  6. Step 6: Final answer
    x = 76,028.96

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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.