Home / 45,908.16-68,862.54-12,631.74

Finding the Fourth Proportional to 45,908.16, 68,862.54 and 12,631.74

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Solution

The fourth proportional to 45,908.16, 68,862.54 and 12,631.74 is: 18,947.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,908.16 : 68,862.54 = 12,631.74 : x
  2. Step 2: Convert to fraction form
    45,908.16/68,862.54 = 12,631.74/x
  3. Step 3: Cross multiply
    45,908.16x = 68,862.54 × 12,631.74
  4. Step 4: Simplify right side
    45,908.16x = 869,853,293.55
  5. Step 5: Solve for x
    x = 869,853,293.55/45,908.16
  6. Step 6: Final answer
    x = 18,947.69

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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.