Home / 45,918.88-68,878.32-18,216.88

Finding the Fourth Proportional to 45,918.88, 68,878.32 and 18,216.88

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Solution

The fourth proportional to 45,918.88, 68,878.32 and 18,216.88 is: 27,325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,918.88 : 68,878.32 = 18,216.88 : x
  2. Step 2: Convert to fraction form
    45,918.88/68,878.32 = 18,216.88/x
  3. Step 3: Cross multiply
    45,918.88x = 68,878.32 × 18,216.88
  4. Step 4: Simplify right side
    45,918.88x = 1,254,748,090.04
  5. Step 5: Solve for x
    x = 1,254,748,090.04/45,918.88
  6. Step 6: Final answer
    x = 27,325.32

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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.