Home / 70,295.04-105,338.88-39,121.92

Finding the Fourth Proportional to 70,295.04, 105,338.88 and 39,121.92

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Solution

The fourth proportional to 70,295.04, 105,338.88 and 39,121.92 is: 58,625.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,295.04 : 105,338.88 = 39,121.92 : x
  2. Step 2: Convert to fraction form
    70,295.04/105,338.88 = 39,121.92/x
  3. Step 3: Cross multiply
    70,295.04x = 105,338.88 × 39,121.92
  4. Step 4: Simplify right side
    70,295.04x = 4,121,059,236.25
  5. Step 5: Solve for x
    x = 4,121,059,236.25/70,295.04
  6. Step 6: Final answer
    x = 58,625.18

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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.