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Finding the Fourth Proportional to 69,491.37, 95,898.69 and 40,803.60

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Solution

The fourth proportional to 69,491.37, 95,898.69 and 40,803.60 is: 56,309.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,491.37 : 95,898.69 = 40,803.60 : x
  2. Step 2: Convert to fraction form
    69,491.37/95,898.69 = 40,803.60/x
  3. Step 3: Cross multiply
    69,491.37x = 95,898.69 × 40,803.60
  4. Step 4: Simplify right side
    69,491.37x = 3,913,011,787.28
  5. Step 5: Solve for x
    x = 3,913,011,787.28/69,491.37
  6. Step 6: Final answer
    x = 56,309.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.