Home / 64,972.16-89,659.04-40,786.14

Finding the Fourth Proportional to 64,972.16, 89,659.04 and 40,786.14

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Solution

The fourth proportional to 64,972.16, 89,659.04 and 40,786.14 is: 56,283.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,972.16 : 89,659.04 = 40,786.14 : x
  2. Step 2: Convert to fraction form
    64,972.16/89,659.04 = 40,786.14/x
  3. Step 3: Cross multiply
    64,972.16x = 89,659.04 × 40,786.14
  4. Step 4: Simplify right side
    64,972.16x = 3,656,846,157.71
  5. Step 5: Solve for x
    x = 3,656,846,157.71/64,972.16
  6. Step 6: Final answer
    x = 56,283.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.