Home / 43,730.80-65,612.40-42,110.80

Finding the Fourth Proportional to 43,730.80, 65,612.40 and 42,110.80

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Solution

The fourth proportional to 43,730.80, 65,612.40 and 42,110.80 is: 63,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,730.80 : 65,612.40 = 42,110.80 : x
  2. Step 2: Convert to fraction form
    43,730.80/65,612.40 = 42,110.80/x
  3. Step 3: Cross multiply
    43,730.80x = 65,612.40 × 42,110.80
  4. Step 4: Simplify right side
    43,730.80x = 2,762,990,653.92
  5. Step 5: Solve for x
    x = 2,762,990,653.92/43,730.80
  6. Step 6: Final answer
    x = 63,181.80

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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.