Home / 45,459.45-68,189.18-13,869.45

Finding the Fourth Proportional to 45,459.45, 68,189.18 and 13,869.45

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Solution

The fourth proportional to 45,459.45, 68,189.18 and 13,869.45 is: 20,804.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,459.45 : 68,189.18 = 13,869.45 : x
  2. Step 2: Convert to fraction form
    45,459.45/68,189.18 = 13,869.45/x
  3. Step 3: Cross multiply
    45,459.45x = 68,189.18 × 13,869.45
  4. Step 4: Simplify right side
    45,459.45x = 945,746,353.20
  5. Step 5: Solve for x
    x = 945,746,353.20/45,459.45
  6. Step 6: Final answer
    x = 20,804.18

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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.