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Finding the Fourth Proportional to 45,157.36, 67,739.28 and 15,574.77

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Solution

The fourth proportional to 45,157.36, 67,739.28 and 15,574.77 is: 23,363.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,157.36 : 67,739.28 = 15,574.77 : x
  2. Step 2: Convert to fraction form
    45,157.36/67,739.28 = 15,574.77/x
  3. Step 3: Cross multiply
    45,157.36x = 67,739.28 × 15,574.77
  4. Step 4: Simplify right side
    45,157.36x = 1,055,023,705.97
  5. Step 5: Solve for x
    x = 1,055,023,705.97/45,157.36
  6. Step 6: Final answer
    x = 23,363.27

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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.