Home / 90,376.21-124,690.66-52,130.62

Finding the Fourth Proportional to 90,376.21, 124,690.66 and 52,130.62

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Solution

The fourth proportional to 90,376.21, 124,690.66 and 52,130.62 is: 71,923.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,376.21 : 124,690.66 = 52,130.62 : x
  2. Step 2: Convert to fraction form
    90,376.21/124,690.66 = 52,130.62/x
  3. Step 3: Cross multiply
    90,376.21x = 124,690.66 × 52,130.62
  4. Step 4: Simplify right side
    90,376.21x = 6,500,201,414.01
  5. Step 5: Solve for x
    x = 6,500,201,414.01/90,376.21
  6. Step 6: Final answer
    x = 71,923.81

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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.