Home / 215,808.18-323,700.58-66,048.49

Finding the Fourth Proportional to 215,808.18, 323,700.58 and 66,048.49

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Solution

The fourth proportional to 215,808.18, 323,700.58 and 66,048.49 is: 99,069.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,808.18 : 323,700.58 = 66,048.49 : x
  2. Step 2: Convert to fraction form
    215,808.18/323,700.58 = 66,048.49/x
  3. Step 3: Cross multiply
    215,808.18x = 323,700.58 × 66,048.49
  4. Step 4: Simplify right side
    215,808.18x = 21,379,934,521.12
  5. Step 5: Solve for x
    x = 21,379,934,521.12/215,808.18
  6. Step 6: Final answer
    x = 99,069.16

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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.