Home / 70,141.23-105,236.45-36,391.02

Finding the Fourth Proportional to 70,141.23, 105,236.45 and 36,391.02

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Solution

The fourth proportional to 70,141.23, 105,236.45 and 36,391.02 is: 54,599.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,141.23 : 105,236.45 = 36,391.02 : x
  2. Step 2: Convert to fraction form
    70,141.23/105,236.45 = 36,391.02/x
  3. Step 3: Cross multiply
    70,141.23x = 105,236.45 × 36,391.02
  4. Step 4: Simplify right side
    70,141.23x = 3,829,661,574.72
  5. Step 5: Solve for x
    x = 3,829,661,574.72/70,141.23
  6. Step 6: Final answer
    x = 54,599.29

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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.