Home / 45,908.15-68,862.53-12,631.73

Finding the Fourth Proportional to 45,908.15, 68,862.53 and 12,631.73

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Solution

The fourth proportional to 45,908.15, 68,862.53 and 12,631.73 is: 18,947.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,908.15 : 68,862.53 = 12,631.73 : x
  2. Step 2: Convert to fraction form
    45,908.15/68,862.53 = 12,631.73/x
  3. Step 3: Cross multiply
    45,908.15x = 68,862.53 × 12,631.73
  4. Step 4: Simplify right side
    45,908.15x = 869,853,089.81
  5. Step 5: Solve for x
    x = 869,853,089.81/45,908.15
  6. Step 6: Final answer
    x = 18,947.68

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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.