Home / 91,267.12-136,905.56-28,942.48

Finding the Fourth Proportional to 91,267.12, 136,905.56 and 28,942.48

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Solution

The fourth proportional to 91,267.12, 136,905.56 and 28,942.48 is: 43,415.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,267.12 : 136,905.56 = 28,942.48 : x
  2. Step 2: Convert to fraction form
    91,267.12/136,905.56 = 28,942.48/x
  3. Step 3: Cross multiply
    91,267.12x = 136,905.56 × 28,942.48
  4. Step 4: Simplify right side
    91,267.12x = 3,962,386,432.19
  5. Step 5: Solve for x
    x = 3,962,386,432.19/91,267.12
  6. Step 6: Final answer
    x = 43,415.27

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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.