Home / 74,821.21-103,250.05-40,828.86

Finding the Fourth Proportional to 74,821.21, 103,250.05 and 40,828.86

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Solution

The fourth proportional to 74,821.21, 103,250.05 and 40,828.86 is: 56,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,821.21 : 103,250.05 = 40,828.86 : x
  2. Step 2: Convert to fraction form
    74,821.21/103,250.05 = 40,828.86/x
  3. Step 3: Cross multiply
    74,821.21x = 103,250.05 × 40,828.86
  4. Step 4: Simplify right side
    74,821.21x = 4,215,581,734.37
  5. Step 5: Solve for x
    x = 4,215,581,734.37/74,821.21
  6. Step 6: Final answer
    x = 56,342.07

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1.5x scale

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.