Home / 70,109.86-105,045.14-38,546.36

Finding the Fourth Proportional to 70,109.86, 105,045.14 and 38,546.36

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Solution

The fourth proportional to 70,109.86, 105,045.14 and 38,546.36 is: 57,753.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,109.86 : 105,045.14 = 38,546.36 : x
  2. Step 2: Convert to fraction form
    70,109.86/105,045.14 = 38,546.36/x
  3. Step 3: Cross multiply
    70,109.86x = 105,045.14 × 38,546.36
  4. Step 4: Simplify right side
    70,109.86x = 4,049,107,782.69
  5. Step 5: Solve for x
    x = 4,049,107,782.69/70,109.86
  6. Step 6: Final answer
    x = 57,753.76

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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.