Home / 74,826.40-103,257.21-40,834.03

Finding the Fourth Proportional to 74,826.40, 103,257.21 and 40,834.03

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Solution

The fourth proportional to 74,826.40, 103,257.21 and 40,834.03 is: 56,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,826.40 : 103,257.21 = 40,834.03 : x
  2. Step 2: Convert to fraction form
    74,826.40/103,257.21 = 40,834.03/x
  3. Step 3: Cross multiply
    74,826.40x = 103,257.21 × 40,834.03
  4. Step 4: Simplify right side
    74,826.40x = 4,216,408,010.86
  5. Step 5: Solve for x
    x = 4,216,408,010.86/74,826.40
  6. Step 6: Final answer
    x = 56,349.20

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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.