Home / 75,280.16-112,993.20-40,244.48

Finding the Fourth Proportional to 75,280.16, 112,993.20 and 40,244.48

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Solution

The fourth proportional to 75,280.16, 112,993.20 and 40,244.48 is: 60,405.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,280.16 : 112,993.20 = 40,244.48 : x
  2. Step 2: Convert to fraction form
    75,280.16/112,993.20 = 40,244.48/x
  3. Step 3: Cross multiply
    75,280.16x = 112,993.20 × 40,244.48
  4. Step 4: Simplify right side
    75,280.16x = 4,547,352,577.54
  5. Step 5: Solve for x
    x = 4,547,352,577.54/75,280.16
  6. Step 6: Final answer
    x = 60,405.72

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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.