Home / 45,172.75-67,756.51-13,582.18

Finding the Fourth Proportional to 45,172.75, 67,756.51 and 13,582.18

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Solution

The fourth proportional to 45,172.75, 67,756.51 and 13,582.18 is: 20,372.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,172.75 : 67,756.51 = 13,582.18 : x
  2. Step 2: Convert to fraction form
    45,172.75/67,756.51 = 13,582.18/x
  3. Step 3: Cross multiply
    45,172.75x = 67,756.51 × 13,582.18
  4. Step 4: Simplify right side
    45,172.75x = 920,281,114.99
  5. Step 5: Solve for x
    x = 920,281,114.99/45,172.75
  6. Step 6: Final answer
    x = 20,372.48

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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.