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Finding the Fourth Proportional to 79,307.44, 109,479.04 and 55,527.36

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Solution

The fourth proportional to 79,307.44, 109,479.04 and 55,527.36 is: 76,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,307.44 : 109,479.04 = 55,527.36 : x
  2. Step 2: Convert to fraction form
    79,307.44/109,479.04 = 55,527.36/x
  3. Step 3: Cross multiply
    79,307.44x = 109,479.04 × 55,527.36
  4. Step 4: Simplify right side
    79,307.44x = 6,079,082,066.53
  5. Step 5: Solve for x
    x = 6,079,082,066.53/79,307.44
  6. Step 6: Final answer
    x = 76,652.10

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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.