Home / 102,408.55-141,324.50-57,089.41

Finding the Fourth Proportional to 102,408.55, 141,324.50 and 57,089.41

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Solution

The fourth proportional to 102,408.55, 141,324.50 and 57,089.41 is: 78,783.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,408.55 : 141,324.50 = 57,089.41 : x
  2. Step 2: Convert to fraction form
    102,408.55/141,324.50 = 57,089.41/x
  3. Step 3: Cross multiply
    102,408.55x = 141,324.50 × 57,089.41
  4. Step 4: Simplify right side
    102,408.55x = 8,068,132,038.10
  5. Step 5: Solve for x
    x = 8,068,132,038.10/102,408.55
  6. Step 6: Final answer
    x = 78,783.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.