Home / 67,014.29-100,491.91-31,485.70

Finding the Fourth Proportional to 67,014.29, 100,491.91 and 31,485.70

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Solution

The fourth proportional to 67,014.29, 100,491.91 and 31,485.70 is: 47,214.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,014.29 : 100,491.91 = 31,485.70 : x
  2. Step 2: Convert to fraction form
    67,014.29/100,491.91 = 31,485.70/x
  3. Step 3: Cross multiply
    67,014.29x = 100,491.91 × 31,485.70
  4. Step 4: Simplify right side
    67,014.29x = 3,164,058,130.69
  5. Step 5: Solve for x
    x = 3,164,058,130.69/67,014.29
  6. Step 6: Final answer
    x = 47,214.68

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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.