Home / 90,985.42-125,563.74-50,699.21

Finding the Fourth Proportional to 90,985.42, 125,563.74 and 50,699.21

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Solution

The fourth proportional to 90,985.42, 125,563.74 and 50,699.21 is: 69,967.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,985.42 : 125,563.74 = 50,699.21 : x
  2. Step 2: Convert to fraction form
    90,985.42/125,563.74 = 50,699.21/x
  3. Step 3: Cross multiply
    90,985.42x = 125,563.74 × 50,699.21
  4. Step 4: Simplify right side
    90,985.42x = 6,365,982,422.65
  5. Step 5: Solve for x
    x = 6,365,982,422.65/90,985.42
  6. Step 6: Final answer
    x = 69,967.06

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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.