Home / 91,880.20-137,820.30-29,550.70

Finding the Fourth Proportional to 91,880.20, 137,820.30 and 29,550.70

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Solution

The fourth proportional to 91,880.20, 137,820.30 and 29,550.70 is: 44,326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,880.20 : 137,820.30 = 29,550.70 : x
  2. Step 2: Convert to fraction form
    91,880.20/137,820.30 = 29,550.70/x
  3. Step 3: Cross multiply
    91,880.20x = 137,820.30 × 29,550.70
  4. Step 4: Simplify right side
    91,880.20x = 4,072,686,339.21
  5. Step 5: Solve for x
    x = 4,072,686,339.21/91,880.20
  6. Step 6: Final answer
    x = 44,326.05

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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.