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Finding the Fourth Proportional to 79,622.70, 109,853.16 and 45,635.10

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Solution

The fourth proportional to 79,622.70, 109,853.16 and 45,635.10 is: 62,961.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,622.70 : 109,853.16 = 45,635.10 : x
  2. Step 2: Convert to fraction form
    79,622.70/109,853.16 = 45,635.10/x
  3. Step 3: Cross multiply
    79,622.70x = 109,853.16 × 45,635.10
  4. Step 4: Simplify right side
    79,622.70x = 5,013,159,941.92
  5. Step 5: Solve for x
    x = 5,013,159,941.92/79,622.70
  6. Step 6: Final answer
    x = 62,961.44

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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.