Home / 90,921.42-136,414.98-46,569.06

Finding the Fourth Proportional to 90,921.42, 136,414.98 and 46,569.06

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Solution

The fourth proportional to 90,921.42, 136,414.98 and 46,569.06 is: 69,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,921.42 : 136,414.98 = 46,569.06 : x
  2. Step 2: Convert to fraction form
    90,921.42/136,414.98 = 46,569.06/x
  3. Step 3: Cross multiply
    90,921.42x = 136,414.98 × 46,569.06
  4. Step 4: Simplify right side
    90,921.42x = 6,352,717,388.52
  5. Step 5: Solve for x
    x = 6,352,717,388.52/90,921.42
  6. Step 6: Final answer
    x = 69,870.42

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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.