Home / 90,168.63-124,442.01-51,929.43

Finding the Fourth Proportional to 90,168.63, 124,442.01 and 51,929.43

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Solution

The fourth proportional to 90,168.63, 124,442.01 and 51,929.43 is: 71,667.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,168.63 : 124,442.01 = 51,929.43 : x
  2. Step 2: Convert to fraction form
    90,168.63/124,442.01 = 51,929.43/x
  3. Step 3: Cross multiply
    90,168.63x = 124,442.01 × 51,929.43
  4. Step 4: Simplify right side
    90,168.63x = 6,462,202,647.35
  5. Step 5: Solve for x
    x = 6,462,202,647.35/90,168.63
  6. Step 6: Final answer
    x = 71,667.97

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1.5x scale

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.