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Finding the Fourth Proportional to 72,346.08, 108,542.16 and 30,804.96

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Solution

The fourth proportional to 72,346.08, 108,542.16 and 30,804.96 is: 46,217.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,346.08 : 108,542.16 = 30,804.96 : x
  2. Step 2: Convert to fraction form
    72,346.08/108,542.16 = 30,804.96/x
  3. Step 3: Cross multiply
    72,346.08x = 108,542.16 × 30,804.96
  4. Step 4: Simplify right side
    72,346.08x = 3,343,636,897.11
  5. Step 5: Solve for x
    x = 3,343,636,897.11/72,346.08
  6. Step 6: Final answer
    x = 46,217.25

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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.