Home / 90,728.91-136,121.04-46,386.79

Finding the Fourth Proportional to 90,728.91, 136,121.04 and 46,386.79

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Solution

The fourth proportional to 90,728.91, 136,121.04 and 46,386.79 is: 69,594.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,728.91 : 136,121.04 = 46,386.79 : x
  2. Step 2: Convert to fraction form
    90,728.91/136,121.04 = 46,386.79/x
  3. Step 3: Cross multiply
    90,728.91x = 136,121.04 × 46,386.79
  4. Step 4: Simplify right side
    90,728.91x = 6,314,218,522.44
  5. Step 5: Solve for x
    x = 6,314,218,522.44/90,728.91
  6. Step 6: Final answer
    x = 69,594.34

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1.5x scale

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.