Home / 90,017.64-124,216.11-49,730.58

Finding the Fourth Proportional to 90,017.64, 124,216.11 and 49,730.58

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Solution

The fourth proportional to 90,017.64, 124,216.11 and 49,730.58 is: 68,623.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,017.64 : 124,216.11 = 49,730.58 : x
  2. Step 2: Convert to fraction form
    90,017.64/124,216.11 = 49,730.58/x
  3. Step 3: Cross multiply
    90,017.64x = 124,216.11 × 49,730.58
  4. Step 4: Simplify right side
    90,017.64x = 6,177,339,195.64
  5. Step 5: Solve for x
    x = 6,177,339,195.64/90,017.64
  6. Step 6: Final answer
    x = 68,623.65

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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.