Home / 72,865.41-109,298.13-56,249.70

Finding the Fourth Proportional to 72,865.41, 109,298.13 and 56,249.70

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Solution

The fourth proportional to 72,865.41, 109,298.13 and 56,249.70 is: 84,374.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,865.41 : 109,298.13 = 56,249.70 : x
  2. Step 2: Convert to fraction form
    72,865.41/109,298.13 = 56,249.70/x
  3. Step 3: Cross multiply
    72,865.41x = 109,298.13 × 56,249.70
  4. Step 4: Simplify right side
    72,865.41x = 6,147,987,023.06
  5. Step 5: Solve for x
    x = 6,147,987,023.06/72,865.41
  6. Step 6: Final answer
    x = 84,374.56

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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.