Home / 70,433.18-105,668.14-20,512.17

Finding the Fourth Proportional to 70,433.18, 105,668.14 and 20,512.17

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Solution

The fourth proportional to 70,433.18, 105,668.14 and 20,512.17 is: 30,773.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,433.18 : 105,668.14 = 20,512.17 : x
  2. Step 2: Convert to fraction form
    70,433.18/105,668.14 = 20,512.17/x
  3. Step 3: Cross multiply
    70,433.18x = 105,668.14 × 20,512.17
  4. Step 4: Simplify right side
    70,433.18x = 2,167,482,851.26
  5. Step 5: Solve for x
    x = 2,167,482,851.26/70,433.18
  6. Step 6: Final answer
    x = 30,773.60

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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.