Home / 90,062.78-124,278.50-51,812.14

Finding the Fourth Proportional to 90,062.78, 124,278.50 and 51,812.14

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Solution

The fourth proportional to 90,062.78, 124,278.50 and 51,812.14 is: 71,496.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,062.78 : 124,278.50 = 51,812.14 : x
  2. Step 2: Convert to fraction form
    90,062.78/124,278.50 = 51,812.14/x
  3. Step 3: Cross multiply
    90,062.78x = 124,278.50 × 51,812.14
  4. Step 4: Simplify right side
    90,062.78x = 6,439,135,040.99
  5. Step 5: Solve for x
    x = 6,439,135,040.99/90,062.78
  6. Step 6: Final answer
    x = 71,496.07

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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.