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Finding the Fourth Proportional to 70,017.58, 104,991.81 and 30,557.62

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Solution

The fourth proportional to 70,017.58, 104,991.81 and 30,557.62 is: 45,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,017.58 : 104,991.81 = 30,557.62 : x
  2. Step 2: Convert to fraction form
    70,017.58/104,991.81 = 30,557.62/x
  3. Step 3: Cross multiply
    70,017.58x = 104,991.81 × 30,557.62
  4. Step 4: Simplify right side
    70,017.58x = 3,208,299,833.09
  5. Step 5: Solve for x
    x = 3,208,299,833.09/70,017.58
  6. Step 6: Final answer
    x = 45,821.35

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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.