Home / 90,590.94-136,016.01-51,140.70

Finding the Fourth Proportional to 90,590.94, 136,016.01 and 51,140.70

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Solution

The fourth proportional to 90,590.94, 136,016.01 and 51,140.70 is: 76,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,590.94 : 136,016.01 = 51,140.70 : x
  2. Step 2: Convert to fraction form
    90,590.94/136,016.01 = 51,140.70/x
  3. Step 3: Cross multiply
    90,590.94x = 136,016.01 × 51,140.70
  4. Step 4: Simplify right side
    90,590.94x = 6,955,953,962.61
  5. Step 5: Solve for x
    x = 6,955,953,962.61/90,590.94
  6. Step 6: Final answer
    x = 76,784.21

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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.