Home / 90,011.36-124,222.95-49,728.65

Finding the Fourth Proportional to 90,011.36, 124,222.95 and 49,728.65

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Solution

The fourth proportional to 90,011.36, 124,222.95 and 49,728.65 is: 68,629.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,011.36 : 124,222.95 = 49,728.65 : x
  2. Step 2: Convert to fraction form
    90,011.36/124,222.95 = 49,728.65/x
  3. Step 3: Cross multiply
    90,011.36x = 124,222.95 × 49,728.65
  4. Step 4: Simplify right side
    90,011.36x = 6,177,439,602.52
  5. Step 5: Solve for x
    x = 6,177,439,602.52/90,011.36
  6. Step 6: Final answer
    x = 68,629.56

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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.