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Finding the Fourth Proportional to 72,595.44, 108,900.69 and 20,004.93

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Solution

The fourth proportional to 72,595.44, 108,900.69 and 20,004.93 is: 30,009.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,595.44 : 108,900.69 = 20,004.93 : x
  2. Step 2: Convert to fraction form
    72,595.44/108,900.69 = 20,004.93/x
  3. Step 3: Cross multiply
    72,595.44x = 108,900.69 × 20,004.93
  4. Step 4: Simplify right side
    72,595.44x = 2,178,550,680.40
  5. Step 5: Solve for x
    x = 2,178,550,680.40/72,595.44
  6. Step 6: Final answer
    x = 30,009.47

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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.