Home / 76,160.05-105,104.16-42,168.54

Finding the Fourth Proportional to 76,160.05, 105,104.16 and 42,168.54

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Solution

The fourth proportional to 76,160.05, 105,104.16 and 42,168.54 is: 58,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,160.05 : 105,104.16 = 42,168.54 : x
  2. Step 2: Convert to fraction form
    76,160.05/105,104.16 = 42,168.54/x
  3. Step 3: Cross multiply
    76,160.05x = 105,104.16 × 42,168.54
  4. Step 4: Simplify right side
    76,160.05x = 4,432,088,511.65
  5. Step 5: Solve for x
    x = 4,432,088,511.65/76,160.05
  6. Step 6: Final answer
    x = 58,194.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.