Home / 45,161.32-67,744.13-21,807.40

Finding the Fourth Proportional to 45,161.32, 67,744.13 and 21,807.40

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Solution

The fourth proportional to 45,161.32, 67,744.13 and 21,807.40 is: 32,712.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,161.32 : 67,744.13 = 21,807.40 : x
  2. Step 2: Convert to fraction form
    45,161.32/67,744.13 = 21,807.40/x
  3. Step 3: Cross multiply
    45,161.32x = 67,744.13 × 21,807.40
  4. Step 4: Simplify right side
    45,161.32x = 1,477,323,340.56
  5. Step 5: Solve for x
    x = 1,477,323,340.56/45,161.32
  6. Step 6: Final answer
    x = 32,712.14

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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.