Home / 52,639.12-72,638.92-28,766

Finding the Fourth Proportional to 52,639.12, 72,638.92 and 28,766

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Solution

The fourth proportional to 52,639.12, 72,638.92 and 28,766 is: 39,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,639.12 : 72,638.92 = 28,766 : x
  2. Step 2: Convert to fraction form
    52,639.12/72,638.92 = 28,766/x
  3. Step 3: Cross multiply
    52,639.12x = 72,638.92 × 28,766
  4. Step 4: Simplify right side
    52,639.12x = 2,089,531,172.72
  5. Step 5: Solve for x
    x = 2,089,531,172.72/52,639.12
  6. Step 6: Final answer
    x = 39,695.40

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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.