Home / 52,218.31-78,327.41-18,509.02

Finding the Fourth Proportional to 52,218.31, 78,327.41 and 18,509.02

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Solution

The fourth proportional to 52,218.31, 78,327.41 and 18,509.02 is: 27,763.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,218.31 : 78,327.41 = 18,509.02 : x
  2. Step 2: Convert to fraction form
    52,218.31/78,327.41 = 18,509.02/x
  3. Step 3: Cross multiply
    52,218.31x = 78,327.41 × 18,509.02
  4. Step 4: Simplify right side
    52,218.31x = 1,449,763,598.24
  5. Step 5: Solve for x
    x = 1,449,763,598.24/52,218.31
  6. Step 6: Final answer
    x = 27,763.51

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1.5x scale

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.