Home / 45,159.48-67,748.64-13,568.28

Finding the Fourth Proportional to 45,159.48, 67,748.64 and 13,568.28

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Solution

The fourth proportional to 45,159.48, 67,748.64 and 13,568.28 is: 20,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,159.48 : 67,748.64 = 13,568.28 : x
  2. Step 2: Convert to fraction form
    45,159.48/67,748.64 = 13,568.28/x
  3. Step 3: Cross multiply
    45,159.48x = 67,748.64 × 13,568.28
  4. Step 4: Simplify right side
    45,159.48x = 919,232,517.14
  5. Step 5: Solve for x
    x = 919,232,517.14/45,159.48
  6. Step 6: Final answer
    x = 20,355.25

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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.