Home / 45,948.32-68,911.08-12,666.92

Finding the Fourth Proportional to 45,948.32, 68,911.08 and 12,666.92

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Solution

The fourth proportional to 45,948.32, 68,911.08 and 12,666.92 is: 18,997.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,948.32 : 68,911.08 = 12,666.92 : x
  2. Step 2: Convert to fraction form
    45,948.32/68,911.08 = 12,666.92/x
  3. Step 3: Cross multiply
    45,948.32x = 68,911.08 × 12,666.92
  4. Step 4: Simplify right side
    45,948.32x = 872,891,137.47
  5. Step 5: Solve for x
    x = 872,891,137.47/45,948.32
  6. Step 6: Final answer
    x = 18,997.24

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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.