Home / 80,730.96-111,361.32-52,455.36

Finding the Fourth Proportional to 80,730.96, 111,361.32 and 52,455.36

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Solution

The fourth proportional to 80,730.96, 111,361.32 and 52,455.36 is: 72,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,730.96 : 111,361.32 = 52,455.36 : x
  2. Step 2: Convert to fraction form
    80,730.96/111,361.32 = 52,455.36/x
  3. Step 3: Cross multiply
    80,730.96x = 111,361.32 × 52,455.36
  4. Step 4: Simplify right side
    80,730.96x = 5,841,498,130.68
  5. Step 5: Solve for x
    x = 5,841,498,130.68/80,730.96
  6. Step 6: Final answer
    x = 72,357.60

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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.