Home / 90,857.54-136,314.21-46,515.42

Finding the Fourth Proportional to 90,857.54, 136,314.21 and 46,515.42

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Solution

The fourth proportional to 90,857.54, 136,314.21 and 46,515.42 is: 69,787.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,857.54 : 136,314.21 = 46,515.42 : x
  2. Step 2: Convert to fraction form
    90,857.54/136,314.21 = 46,515.42/x
  3. Step 3: Cross multiply
    90,857.54x = 136,314.21 × 46,515.42
  4. Step 4: Simplify right side
    90,857.54x = 6,340,712,730.12
  5. Step 5: Solve for x
    x = 6,340,712,730.12/90,857.54
  6. Step 6: Final answer
    x = 69,787.42

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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.