Home / 90,773.09-125,215.73-54,465.14

Finding the Fourth Proportional to 90,773.09, 125,215.73 and 54,465.14

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Solution

The fourth proportional to 90,773.09, 125,215.73 and 54,465.14 is: 75,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,773.09 : 125,215.73 = 54,465.14 : x
  2. Step 2: Convert to fraction form
    90,773.09/125,215.73 = 54,465.14/x
  3. Step 3: Cross multiply
    90,773.09x = 125,215.73 × 54,465.14
  4. Step 4: Simplify right side
    90,773.09x = 6,819,891,903.89
  5. Step 5: Solve for x
    x = 6,819,891,903.89/90,773.09
  6. Step 6: Final answer
    x = 75,131.21

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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.