Home / 76,328.13-105,211.11-60,169.09

Finding the Fourth Proportional to 76,328.13, 105,211.11 and 60,169.09

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Solution

The fourth proportional to 76,328.13, 105,211.11 and 60,169.09 is: 82,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,328.13 : 105,211.11 = 60,169.09 : x
  2. Step 2: Convert to fraction form
    76,328.13/105,211.11 = 60,169.09/x
  3. Step 3: Cross multiply
    76,328.13x = 105,211.11 × 60,169.09
  4. Step 4: Simplify right side
    76,328.13x = 6,330,456,746.59
  5. Step 5: Solve for x
    x = 6,330,456,746.59/76,328.13
  6. Step 6: Final answer
    x = 82,937.40

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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.