Home / 70,001.31-105,007.23-20,081.01

Finding the Fourth Proportional to 70,001.31, 105,007.23 and 20,081.01

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Solution

The fourth proportional to 70,001.31, 105,007.23 and 20,081.01 is: 30,123.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,001.31 : 105,007.23 = 20,081.01 : x
  2. Step 2: Convert to fraction form
    70,001.31/105,007.23 = 20,081.01/x
  3. Step 3: Cross multiply
    70,001.31x = 105,007.23 × 20,081.01
  4. Step 4: Simplify right side
    70,001.31x = 2,108,651,235.70
  5. Step 5: Solve for x
    x = 2,108,651,235.70/70,001.31
  6. Step 6: Final answer
    x = 30,123.03

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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.