Home / 90,505.79-124,896.08-50,218.68

Finding the Fourth Proportional to 90,505.79, 124,896.08 and 50,218.68

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Solution

The fourth proportional to 90,505.79, 124,896.08 and 50,218.68 is: 69,300.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,505.79 : 124,896.08 = 50,218.68 : x
  2. Step 2: Convert to fraction form
    90,505.79/124,896.08 = 50,218.68/x
  3. Step 3: Cross multiply
    90,505.79x = 124,896.08 × 50,218.68
  4. Step 4: Simplify right side
    90,505.79x = 6,272,116,023.68
  5. Step 5: Solve for x
    x = 6,272,116,023.68/90,505.79
  6. Step 6: Final answer
    x = 69,300.72

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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.