Home / 81,376.05-122,081.51-25,214.93

Finding the Fourth Proportional to 81,376.05, 122,081.51 and 25,214.93

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Solution

The fourth proportional to 81,376.05, 122,081.51 and 25,214.93 is: 37,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,376.05 : 122,081.51 = 25,214.93 : x
  2. Step 2: Convert to fraction form
    81,376.05/122,081.51 = 25,214.93/x
  3. Step 3: Cross multiply
    81,376.05x = 122,081.51 × 25,214.93
  4. Step 4: Simplify right side
    81,376.05x = 3,078,276,728.94
  5. Step 5: Solve for x
    x = 3,078,276,728.94/81,376.05
  6. Step 6: Final answer
    x = 37,827.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.