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Finding the Fourth Proportional to 71,008.82, 106,527.80 and 28,888.79

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Solution

The fourth proportional to 71,008.82, 106,527.80 and 28,888.79 is: 43,339.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,008.82 : 106,527.80 = 28,888.79 : x
  2. Step 2: Convert to fraction form
    71,008.82/106,527.80 = 28,888.79/x
  3. Step 3: Cross multiply
    71,008.82x = 106,527.80 × 28,888.79
  4. Step 4: Simplify right side
    71,008.82x = 3,077,459,581.90
  5. Step 5: Solve for x
    x = 3,077,459,581.90/71,008.82
  6. Step 6: Final answer
    x = 43,339.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.