Home / 70,120.36-105,117.99-25,736.82

Finding the Fourth Proportional to 70,120.36, 105,117.99 and 25,736.82

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Solution

The fourth proportional to 70,120.36, 105,117.99 and 25,736.82 is: 38,582.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,120.36 : 105,117.99 = 25,736.82 : x
  2. Step 2: Convert to fraction form
    70,120.36/105,117.99 = 25,736.82/x
  3. Step 3: Cross multiply
    70,120.36x = 105,117.99 × 25,736.82
  4. Step 4: Simplify right side
    70,120.36x = 2,705,402,787.39
  5. Step 5: Solve for x
    x = 2,705,402,787.39/70,120.36
  6. Step 6: Final answer
    x = 38,582.27

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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.