Home / 72,817.46-109,140.96-27,809.34

Finding the Fourth Proportional to 72,817.46, 109,140.96 and 27,809.34

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Solution

The fourth proportional to 72,817.46, 109,140.96 and 27,809.34 is: 41,681.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,817.46 : 109,140.96 = 27,809.34 : x
  2. Step 2: Convert to fraction form
    72,817.46/109,140.96 = 27,809.34/x
  3. Step 3: Cross multiply
    72,817.46x = 109,140.96 × 27,809.34
  4. Step 4: Simplify right side
    72,817.46x = 3,035,138,064.57
  5. Step 5: Solve for x
    x = 3,035,138,064.57/72,817.46
  6. Step 6: Final answer
    x = 41,681.46

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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.