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Finding the Fourth Proportional to 72,386.10, 108,511.11 and 37,316.34

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Solution

The fourth proportional to 72,386.10, 108,511.11 and 37,316.34 is: 55,939.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,386.10 : 108,511.11 = 37,316.34 : x
  2. Step 2: Convert to fraction form
    72,386.10/108,511.11 = 37,316.34/x
  3. Step 3: Cross multiply
    72,386.10x = 108,511.11 × 37,316.34
  4. Step 4: Simplify right side
    72,386.10x = 4,049,237,474.54
  5. Step 5: Solve for x
    x = 4,049,237,474.54/72,386.10
  6. Step 6: Final answer
    x = 55,939.43

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1.5x scale

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.