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Finding the Fourth Proportional to 79,330.98, 109,469.78 and 45,332.72

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Solution

The fourth proportional to 79,330.98, 109,469.78 and 45,332.72 is: 62,555.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,330.98 : 109,469.78 = 45,332.72 : x
  2. Step 2: Convert to fraction form
    79,330.98/109,469.78 = 45,332.72/x
  3. Step 3: Cross multiply
    79,330.98x = 109,469.78 × 45,332.72
  4. Step 4: Simplify right side
    79,330.98x = 4,962,562,885.20
  5. Step 5: Solve for x
    x = 4,962,562,885.20/79,330.98
  6. Step 6: Final answer
    x = 62,555.17

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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.