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Finding the Fourth Proportional to 72,797.30, 100,460.21 and 40,966.22

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Solution

The fourth proportional to 72,797.30, 100,460.21 and 40,966.22 is: 56,533.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,797.30 : 100,460.21 = 40,966.22 : x
  2. Step 2: Convert to fraction form
    72,797.30/100,460.21 = 40,966.22/x
  3. Step 3: Cross multiply
    72,797.30x = 100,460.21 × 40,966.22
  4. Step 4: Simplify right side
    72,797.30x = 4,115,474,356.97
  5. Step 5: Solve for x
    x = 4,115,474,356.97/72,797.30
  6. Step 6: Final answer
    x = 56,533.34

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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.