Home / 45,943.92-68,907.60-12,659.70

Finding the Fourth Proportional to 45,943.92, 68,907.60 and 12,659.70

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Solution

The fourth proportional to 45,943.92, 68,907.60 and 12,659.70 is: 18,987.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,943.92 : 68,907.60 = 12,659.70 : x
  2. Step 2: Convert to fraction form
    45,943.92/68,907.60 = 12,659.70/x
  3. Step 3: Cross multiply
    45,943.92x = 68,907.60 × 12,659.70
  4. Step 4: Simplify right side
    45,943.92x = 872,349,543.72
  5. Step 5: Solve for x
    x = 872,349,543.72/45,943.92
  6. Step 6: Final answer
    x = 18,987.27

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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.