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Finding the Fourth Proportional to 79,990.92, 110,401.64 and 45,996.77

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Solution

The fourth proportional to 79,990.92, 110,401.64 and 45,996.77 is: 63,483.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,990.92 : 110,401.64 = 45,996.77 : x
  2. Step 2: Convert to fraction form
    79,990.92/110,401.64 = 45,996.77/x
  3. Step 3: Cross multiply
    79,990.92x = 110,401.64 × 45,996.77
  4. Step 4: Simplify right side
    79,990.92x = 5,078,118,060.71
  5. Step 5: Solve for x
    x = 5,078,118,060.71/79,990.92
  6. Step 6: Final answer
    x = 63,483.68

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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.