Home / 48,742.80-73,114.20-19,161.60

Finding the Fourth Proportional to 48,742.80, 73,114.20 and 19,161.60

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Solution

The fourth proportional to 48,742.80, 73,114.20 and 19,161.60 is: 28,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,742.80 : 73,114.20 = 19,161.60 : x
  2. Step 2: Convert to fraction form
    48,742.80/73,114.20 = 19,161.60/x
  3. Step 3: Cross multiply
    48,742.80x = 73,114.20 × 19,161.60
  4. Step 4: Simplify right side
    48,742.80x = 1,400,985,054.72
  5. Step 5: Solve for x
    x = 1,400,985,054.72/48,742.80
  6. Step 6: Final answer
    x = 28,742.40

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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.