Home / 43,074.54-64,643.40-28,278.26

Finding the Fourth Proportional to 43,074.54, 64,643.40 and 28,278.26

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Solution

The fourth proportional to 43,074.54, 64,643.40 and 28,278.26 is: 42,438.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,074.54 : 64,643.40 = 28,278.26 : x
  2. Step 2: Convert to fraction form
    43,074.54/64,643.40 = 28,278.26/x
  3. Step 3: Cross multiply
    43,074.54x = 64,643.40 × 28,278.26
  4. Step 4: Simplify right side
    43,074.54x = 1,828,002,872.48
  5. Step 5: Solve for x
    x = 1,828,002,872.48/43,074.54
  6. Step 6: Final answer
    x = 42,438.13

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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.