Home / 42,941.12-64,380.54-28,866.24

Finding the Fourth Proportional to 42,941.12, 64,380.54 and 28,866.24

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Solution

The fourth proportional to 42,941.12, 64,380.54 and 28,866.24 is: 43,278.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,941.12 : 64,380.54 = 28,866.24 : x
  2. Step 2: Convert to fraction form
    42,941.12/64,380.54 = 28,866.24/x
  3. Step 3: Cross multiply
    42,941.12x = 64,380.54 × 28,866.24
  4. Step 4: Simplify right side
    42,941.12x = 1,858,423,797.07
  5. Step 5: Solve for x
    x = 1,858,423,797.07/42,941.12
  6. Step 6: Final answer
    x = 43,278.42

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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.