Home / 76,683.20-105,822.60-43,149.20

Finding the Fourth Proportional to 76,683.20, 105,822.60 and 43,149.20

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Solution

The fourth proportional to 76,683.20, 105,822.60 and 43,149.20 is: 59,545.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,683.20 : 105,822.60 = 43,149.20 : x
  2. Step 2: Convert to fraction form
    76,683.20/105,822.60 = 43,149.20/x
  3. Step 3: Cross multiply
    76,683.20x = 105,822.60 × 43,149.20
  4. Step 4: Simplify right side
    76,683.20x = 4,566,160,531.92
  5. Step 5: Solve for x
    x = 4,566,160,531.92/76,683.20
  6. Step 6: Final answer
    x = 59,545.77

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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.