Home / 91,288.40-136,932.60-51,922.40

Finding the Fourth Proportional to 91,288.40, 136,932.60 and 51,922.40

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Solution

The fourth proportional to 91,288.40, 136,932.60 and 51,922.40 is: 77,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,288.40 : 136,932.60 = 51,922.40 : x
  2. Step 2: Convert to fraction form
    91,288.40/136,932.60 = 51,922.40/x
  3. Step 3: Cross multiply
    91,288.40x = 136,932.60 × 51,922.40
  4. Step 4: Simplify right side
    91,288.40x = 7,109,869,230.24
  5. Step 5: Solve for x
    x = 7,109,869,230.24/91,288.40
  6. Step 6: Final answer
    x = 77,883.60

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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.