Home / 90,739.84-136,137.45-46,397.74

Finding the Fourth Proportional to 90,739.84, 136,137.45 and 46,397.74

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Solution

The fourth proportional to 90,739.84, 136,137.45 and 46,397.74 is: 69,610.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,739.84 : 136,137.45 = 46,397.74 : x
  2. Step 2: Convert to fraction form
    90,739.84/136,137.45 = 46,397.74/x
  3. Step 3: Cross multiply
    90,739.84x = 136,137.45 × 46,397.74
  4. Step 4: Simplify right side
    90,739.84x = 6,316,469,096.69
  5. Step 5: Solve for x
    x = 6,316,469,096.69/90,739.84
  6. Step 6: Final answer
    x = 69,610.76

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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.