Home / 48,478.92-66,939.66-31,491.60

Finding the Fourth Proportional to 48,478.92, 66,939.66 and 31,491.60

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Solution

The fourth proportional to 48,478.92, 66,939.66 and 31,491.60 is: 43,483.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,478.92 : 66,939.66 = 31,491.60 : x
  2. Step 2: Convert to fraction form
    48,478.92/66,939.66 = 31,491.60/x
  3. Step 3: Cross multiply
    48,478.92x = 66,939.66 × 31,491.60
  4. Step 4: Simplify right side
    48,478.92x = 2,108,036,996.86
  5. Step 5: Solve for x
    x = 2,108,036,996.86/48,478.92
  6. Step 6: Final answer
    x = 43,483.58

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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.