Home / 90,218.93-124,515.32-51,971.04

Finding the Fourth Proportional to 90,218.93, 124,515.32 and 51,971.04

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Solution

The fourth proportional to 90,218.93, 124,515.32 and 51,971.04 is: 71,727.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,218.93 : 124,515.32 = 51,971.04 : x
  2. Step 2: Convert to fraction form
    90,218.93/124,515.32 = 51,971.04/x
  3. Step 3: Cross multiply
    90,218.93x = 124,515.32 × 51,971.04
  4. Step 4: Simplify right side
    90,218.93x = 6,471,190,416.48
  5. Step 5: Solve for x
    x = 6,471,190,416.48/90,218.93
  6. Step 6: Final answer
    x = 71,727.64

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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.