Home / 90,609.90-125,036.70-50,321.10

Finding the Fourth Proportional to 90,609.90, 125,036.70 and 50,321.10

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Solution

The fourth proportional to 90,609.90, 125,036.70 and 50,321.10 is: 69,440.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,609.90 : 125,036.70 = 50,321.10 : x
  2. Step 2: Convert to fraction form
    90,609.90/125,036.70 = 50,321.10/x
  3. Step 3: Cross multiply
    90,609.90x = 125,036.70 × 50,321.10
  4. Step 4: Simplify right side
    90,609.90x = 6,291,984,284.37
  5. Step 5: Solve for x
    x = 6,291,984,284.37/90,609.90
  6. Step 6: Final answer
    x = 69,440.36

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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.