Home / 90,699.75-125,173.40-50,412.47

Finding the Fourth Proportional to 90,699.75, 125,173.40 and 50,412.47

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Solution

The fourth proportional to 90,699.75, 125,173.40 and 50,412.47 is: 69,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,699.75 : 125,173.40 = 50,412.47 : x
  2. Step 2: Convert to fraction form
    90,699.75/125,173.40 = 50,412.47/x
  3. Step 3: Cross multiply
    90,699.75x = 125,173.40 × 50,412.47
  4. Step 4: Simplify right side
    90,699.75x = 6,310,299,394.37
  5. Step 5: Solve for x
    x = 6,310,299,394.37/90,699.75
  6. Step 6: Final answer
    x = 69,573.50

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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.