Home / 74,004.22-102,123.74-40,469.50

Finding the Fourth Proportional to 74,004.22, 102,123.74 and 40,469.50

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Solution

The fourth proportional to 74,004.22, 102,123.74 and 40,469.50 is: 55,846.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,004.22 : 102,123.74 = 40,469.50 : x
  2. Step 2: Convert to fraction form
    74,004.22/102,123.74 = 40,469.50/x
  3. Step 3: Cross multiply
    74,004.22x = 102,123.74 × 40,469.50
  4. Step 4: Simplify right side
    74,004.22x = 4,132,896,695.93
  5. Step 5: Solve for x
    x = 4,132,896,695.93/74,004.22
  6. Step 6: Final answer
    x = 55,846.77

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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.