Home / 215,782.43-323,661.95-66,022.74

Finding the Fourth Proportional to 215,782.43, 323,661.95 and 66,022.74

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Solution

The fourth proportional to 215,782.43, 323,661.95 and 66,022.74 is: 99,030.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,782.43 : 323,661.95 = 66,022.74 : x
  2. Step 2: Convert to fraction form
    215,782.43/323,661.95 = 66,022.74/x
  3. Step 3: Cross multiply
    215,782.43x = 323,661.95 × 66,022.74
  4. Step 4: Simplify right side
    215,782.43x = 21,369,048,442.63
  5. Step 5: Solve for x
    x = 21,369,048,442.63/215,782.43
  6. Step 6: Final answer
    x = 99,030.53

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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.