Home / 48,683.76-72,909-43,434.96

Finding the Fourth Proportional to 48,683.76, 72,909 and 43,434.96

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Solution

The fourth proportional to 48,683.76, 72,909 and 43,434.96 is: 65,048.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,683.76 : 72,909 = 43,434.96 : x
  2. Step 2: Convert to fraction form
    48,683.76/72,909 = 43,434.96/x
  3. Step 3: Cross multiply
    48,683.76x = 72,909 × 43,434.96
  4. Step 4: Simplify right side
    48,683.76x = 3,166,799,498.64
  5. Step 5: Solve for x
    x = 3,166,799,498.64/48,683.76
  6. Step 6: Final answer
    x = 65,048.38

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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.