Home / 72,072.81-108,109.60-47,269.93

Finding the Fourth Proportional to 72,072.81, 108,109.60 and 47,269.93

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Solution

The fourth proportional to 72,072.81, 108,109.60 and 47,269.93 is: 70,905.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,072.81 : 108,109.60 = 47,269.93 : x
  2. Step 2: Convert to fraction form
    72,072.81/108,109.60 = 47,269.93/x
  3. Step 3: Cross multiply
    72,072.81x = 108,109.60 × 47,269.93
  4. Step 4: Simplify right side
    72,072.81x = 5,110,332,683.78
  5. Step 5: Solve for x
    x = 5,110,332,683.78/72,072.81
  6. Step 6: Final answer
    x = 70,905.14

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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.