Home / 45,424.64-68,139.83-14,261.12

Finding the Fourth Proportional to 45,424.64, 68,139.83 and 14,261.12

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Solution

The fourth proportional to 45,424.64, 68,139.83 and 14,261.12 is: 21,392.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,424.64 : 68,139.83 = 14,261.12 : x
  2. Step 2: Convert to fraction form
    45,424.64/68,139.83 = 14,261.12/x
  3. Step 3: Cross multiply
    45,424.64x = 68,139.83 × 14,261.12
  4. Step 4: Simplify right side
    45,424.64x = 971,749,987.36
  5. Step 5: Solve for x
    x = 971,749,987.36/45,424.64
  6. Step 6: Final answer
    x = 21,392.58

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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.