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Finding the Fourth Proportional to 72,172.04, 108,262.49 and 27,798.92

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Solution

The fourth proportional to 72,172.04, 108,262.49 and 27,798.92 is: 41,700.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,172.04 : 108,262.49 = 27,798.92 : x
  2. Step 2: Convert to fraction form
    72,172.04/108,262.49 = 27,798.92/x
  3. Step 3: Cross multiply
    72,172.04x = 108,262.49 × 27,798.92
  4. Step 4: Simplify right side
    72,172.04x = 3,009,580,430.17
  5. Step 5: Solve for x
    x = 3,009,580,430.17/72,172.04
  6. Step 6: Final answer
    x = 41,700.09

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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.