Home / 90,991.64-125,567.16-50,707.10

Finding the Fourth Proportional to 90,991.64, 125,567.16 and 50,707.10

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Solution

The fourth proportional to 90,991.64, 125,567.16 and 50,707.10 is: 69,975.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,991.64 : 125,567.16 = 50,707.10 : x
  2. Step 2: Convert to fraction form
    90,991.64/125,567.16 = 50,707.10/x
  3. Step 3: Cross multiply
    90,991.64x = 125,567.16 × 50,707.10
  4. Step 4: Simplify right side
    90,991.64x = 6,367,146,538.84
  5. Step 5: Solve for x
    x = 6,367,146,538.84/90,991.64
  6. Step 6: Final answer
    x = 69,975.07

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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.