Home / 70,710.03-106,050.13-20,776.57

Finding the Fourth Proportional to 70,710.03, 106,050.13 and 20,776.57

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Solution

The fourth proportional to 70,710.03, 106,050.13 and 20,776.57 is: 31,160.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,710.03 : 106,050.13 = 20,776.57 : x
  2. Step 2: Convert to fraction form
    70,710.03/106,050.13 = 20,776.57/x
  3. Step 3: Cross multiply
    70,710.03x = 106,050.13 × 20,776.57
  4. Step 4: Simplify right side
    70,710.03x = 2,203,357,632.39
  5. Step 5: Solve for x
    x = 2,203,357,632.39/70,710.03
  6. Step 6: Final answer
    x = 31,160.47

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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.