Home / 72,851.58-109,277.55-20,261.07

Finding the Fourth Proportional to 72,851.58, 109,277.55 and 20,261.07

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Solution

The fourth proportional to 72,851.58, 109,277.55 and 20,261.07 is: 30,391.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,851.58 : 109,277.55 = 20,261.07 : x
  2. Step 2: Convert to fraction form
    72,851.58/109,277.55 = 20,261.07/x
  3. Step 3: Cross multiply
    72,851.58x = 109,277.55 × 20,261.07
  4. Step 4: Simplify right side
    72,851.58x = 2,214,080,089.98
  5. Step 5: Solve for x
    x = 2,214,080,089.98/72,851.58
  6. Step 6: Final answer
    x = 30,391.66

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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.