Home / 212,037.86-318,056.52-54,266.36

Finding the Fourth Proportional to 212,037.86, 318,056.52 and 54,266.36

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Solution

The fourth proportional to 212,037.86, 318,056.52 and 54,266.36 is: 81,399.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,037.86 : 318,056.52 = 54,266.36 : x
  2. Step 2: Convert to fraction form
    212,037.86/318,056.52 = 54,266.36/x
  3. Step 3: Cross multiply
    212,037.86x = 318,056.52 × 54,266.36
  4. Step 4: Simplify right side
    212,037.86x = 17,259,769,614.67
  5. Step 5: Solve for x
    x = 17,259,769,614.67/212,037.86
  6. Step 6: Final answer
    x = 81,399.47

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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.