Home / 90,426.54-124,814.62-54,610.50

Finding the Fourth Proportional to 90,426.54, 124,814.62 and 54,610.50

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Solution

The fourth proportional to 90,426.54, 124,814.62 and 54,610.50 is: 75,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,426.54 : 124,814.62 = 54,610.50 : x
  2. Step 2: Convert to fraction form
    90,426.54/124,814.62 = 54,610.50/x
  3. Step 3: Cross multiply
    90,426.54x = 124,814.62 × 54,610.50
  4. Step 4: Simplify right side
    90,426.54x = 6,816,188,805.51
  5. Step 5: Solve for x
    x = 6,816,188,805.51/90,426.54
  6. Step 6: Final answer
    x = 75,378.19

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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.