Home / 45,938.31-68,901.17-12,653.58

Finding the Fourth Proportional to 45,938.31, 68,901.17 and 12,653.58

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Solution

The fourth proportional to 45,938.31, 68,901.17 and 12,653.58 is: 18,978.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,938.31 : 68,901.17 = 12,653.58 : x
  2. Step 2: Convert to fraction form
    45,938.31/68,901.17 = 12,653.58/x
  3. Step 3: Cross multiply
    45,938.31x = 68,901.17 × 12,653.58
  4. Step 4: Simplify right side
    45,938.31x = 871,846,466.69
  5. Step 5: Solve for x
    x = 871,846,466.69/45,938.31
  6. Step 6: Final answer
    x = 18,978.64

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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.