Home / 64,981.80-97,476.18-20,612.04

Finding the Fourth Proportional to 64,981.80, 97,476.18 and 20,612.04

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Solution

The fourth proportional to 64,981.80, 97,476.18 and 20,612.04 is: 30,919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,981.80 : 97,476.18 = 20,612.04 : x
  2. Step 2: Convert to fraction form
    64,981.80/97,476.18 = 20,612.04/x
  3. Step 3: Cross multiply
    64,981.80x = 97,476.18 × 20,612.04
  4. Step 4: Simplify right side
    64,981.80x = 2,009,182,921.21
  5. Step 5: Solve for x
    x = 2,009,182,921.21/64,981.80
  6. Step 6: Final answer
    x = 30,919.16

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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.