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Finding the Fourth Proportional to 45,994.92, 69,009.36 and 19,720.12

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Solution

The fourth proportional to 45,994.92, 69,009.36 and 19,720.12 is: 29,587.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,994.92 : 69,009.36 = 19,720.12 : x
  2. Step 2: Convert to fraction form
    45,994.92/69,009.36 = 19,720.12/x
  3. Step 3: Cross multiply
    45,994.92x = 69,009.36 × 19,720.12
  4. Step 4: Simplify right side
    45,994.92x = 1,360,872,860.32
  5. Step 5: Solve for x
    x = 1,360,872,860.32/45,994.92
  6. Step 6: Final answer
    x = 29,587.46

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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.