Home / 90,012.08-124,216.08-49,728.44

Finding the Fourth Proportional to 90,012.08, 124,216.08 and 49,728.44

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Solution

The fourth proportional to 90,012.08, 124,216.08 and 49,728.44 is: 68,624.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,012.08 : 124,216.08 = 49,728.44 : x
  2. Step 2: Convert to fraction form
    90,012.08/124,216.08 = 49,728.44/x
  3. Step 3: Cross multiply
    90,012.08x = 124,216.08 × 49,728.44
  4. Step 4: Simplify right side
    90,012.08x = 6,177,071,881.32
  5. Step 5: Solve for x
    x = 6,177,071,881.32/90,012.08
  6. Step 6: Final answer
    x = 68,624.92

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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.