Home / 91,109.70-136,664.55-31,951.35

Finding the Fourth Proportional to 91,109.70, 136,664.55 and 31,951.35

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Solution

The fourth proportional to 91,109.70, 136,664.55 and 31,951.35 is: 47,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,109.70 : 136,664.55 = 31,951.35 : x
  2. Step 2: Convert to fraction form
    91,109.70/136,664.55 = 31,951.35/x
  3. Step 3: Cross multiply
    91,109.70x = 136,664.55 × 31,951.35
  4. Step 4: Simplify right side
    91,109.70x = 4,366,616,869.64
  5. Step 5: Solve for x
    x = 4,366,616,869.64/91,109.70
  6. Step 6: Final answer
    x = 47,927.03

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1.5x scale

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.