Home / 67,313.16-100,987.92-20,564.76

Finding the Fourth Proportional to 67,313.16, 100,987.92 and 20,564.76

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Solution

The fourth proportional to 67,313.16, 100,987.92 and 20,564.76 is: 30,852.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,313.16 : 100,987.92 = 20,564.76 : x
  2. Step 2: Convert to fraction form
    67,313.16/100,987.92 = 20,564.76/x
  3. Step 3: Cross multiply
    67,313.16x = 100,987.92 × 20,564.76
  4. Step 4: Simplify right side
    67,313.16x = 2,076,792,337.70
  5. Step 5: Solve for x
    x = 2,076,792,337.70/67,313.16
  6. Step 6: Final answer
    x = 30,852.69

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1.5x scale

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.