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Finding the Fourth Proportional to 79,162.84, 109,254.18 and 48,968.20

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Solution

The fourth proportional to 79,162.84, 109,254.18 and 48,968.20 is: 67,581.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,162.84 : 109,254.18 = 48,968.20 : x
  2. Step 2: Convert to fraction form
    79,162.84/109,254.18 = 48,968.20/x
  3. Step 3: Cross multiply
    79,162.84x = 109,254.18 × 48,968.20
  4. Step 4: Simplify right side
    79,162.84x = 5,349,980,537.08
  5. Step 5: Solve for x
    x = 5,349,980,537.08/79,162.84
  6. Step 6: Final answer
    x = 67,581.97

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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.