Home / 90,905.14-136,357.56-40,926.84

Finding the Fourth Proportional to 90,905.14, 136,357.56 and 40,926.84

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Solution

The fourth proportional to 90,905.14, 136,357.56 and 40,926.84 is: 61,390.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,905.14 : 136,357.56 = 40,926.84 : x
  2. Step 2: Convert to fraction form
    90,905.14/136,357.56 = 40,926.84/x
  3. Step 3: Cross multiply
    90,905.14x = 136,357.56 × 40,926.84
  4. Step 4: Simplify right side
    90,905.14x = 5,580,684,040.91
  5. Step 5: Solve for x
    x = 5,580,684,040.91/90,905.14
  6. Step 6: Final answer
    x = 61,390.19

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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.