Home / 67,148.10-100,612.80-49,433.40

Finding the Fourth Proportional to 67,148.10, 100,612.80 and 49,433.40

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Solution

The fourth proportional to 67,148.10, 100,612.80 and 49,433.40 is: 74,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,148.10 : 100,612.80 = 49,433.40 : x
  2. Step 2: Convert to fraction form
    67,148.10/100,612.80 = 49,433.40/x
  3. Step 3: Cross multiply
    67,148.10x = 100,612.80 × 49,433.40
  4. Step 4: Simplify right side
    67,148.10x = 4,973,632,787.52
  5. Step 5: Solve for x
    x = 4,973,632,787.52/67,148.10
  6. Step 6: Final answer
    x = 74,069.60

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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.