Home / 90,186.73-124,461.36-49,899.84

Finding the Fourth Proportional to 90,186.73, 124,461.36 and 49,899.84

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Solution

The fourth proportional to 90,186.73, 124,461.36 and 49,899.84 is: 68,863.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,186.73 : 124,461.36 = 49,899.84 : x
  2. Step 2: Convert to fraction form
    90,186.73/124,461.36 = 49,899.84/x
  3. Step 3: Cross multiply
    90,186.73x = 124,461.36 × 49,899.84
  4. Step 4: Simplify right side
    90,186.73x = 6,210,601,950.18
  5. Step 5: Solve for x
    x = 6,210,601,950.18/90,186.73
  6. Step 6: Final answer
    x = 68,863.81

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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.