Home / 90,485.90-135,663.24-60,830.18

Finding the Fourth Proportional to 90,485.90, 135,663.24 and 60,830.18

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Solution

The fourth proportional to 90,485.90, 135,663.24 and 60,830.18 is: 91,201.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,485.90 : 135,663.24 = 60,830.18 : x
  2. Step 2: Convert to fraction form
    90,485.90/135,663.24 = 60,830.18/x
  3. Step 3: Cross multiply
    90,485.90x = 135,663.24 × 60,830.18
  4. Step 4: Simplify right side
    90,485.90x = 8,252,419,308.58
  5. Step 5: Solve for x
    x = 8,252,419,308.58/90,485.90
  6. Step 6: Final answer
    x = 91,201.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.