Home / 90,424.68-124,765.86-54,120.48

Finding the Fourth Proportional to 90,424.68, 124,765.86 and 54,120.48

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Solution

The fourth proportional to 90,424.68, 124,765.86 and 54,120.48 is: 74,674.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,424.68 : 124,765.86 = 54,120.48 : x
  2. Step 2: Convert to fraction form
    90,424.68/124,765.86 = 54,120.48/x
  3. Step 3: Cross multiply
    90,424.68x = 124,765.86 × 54,120.48
  4. Step 4: Simplify right side
    90,424.68x = 6,752,388,230.81
  5. Step 5: Solve for x
    x = 6,752,388,230.81/90,424.68
  6. Step 6: Final answer
    x = 74,674.17

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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.