Home / 45,811.28-68,712.60-14,638.16

Finding the Fourth Proportional to 45,811.28, 68,712.60 and 14,638.16

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Solution

The fourth proportional to 45,811.28, 68,712.60 and 14,638.16 is: 21,955.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,811.28 : 68,712.60 = 14,638.16 : x
  2. Step 2: Convert to fraction form
    45,811.28/68,712.60 = 14,638.16/x
  3. Step 3: Cross multiply
    45,811.28x = 68,712.60 × 14,638.16
  4. Step 4: Simplify right side
    45,811.28x = 1,005,826,032.82
  5. Step 5: Solve for x
    x = 1,005,826,032.82/45,811.28
  6. Step 6: Final answer
    x = 21,955.86

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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.