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Finding the Fourth Proportional to 79,154, 109,232.52 and 45,622.16

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Solution

The fourth proportional to 79,154, 109,232.52 and 45,622.16 is: 62,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,154 : 109,232.52 = 45,622.16 : x
  2. Step 2: Convert to fraction form
    79,154/109,232.52 = 45,622.16/x
  3. Step 3: Cross multiply
    79,154x = 109,232.52 × 45,622.16
  4. Step 4: Simplify right side
    79,154x = 4,983,423,504.64
  5. Step 5: Solve for x
    x = 4,983,423,504.64/79,154
  6. Step 6: Final answer
    x = 62,958.58

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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.