Home / 40,806.40-61,123.20-26,809.60

Finding the Fourth Proportional to 40,806.40, 61,123.20 and 26,809.60

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Solution

The fourth proportional to 40,806.40, 61,123.20 and 26,809.60 is: 40,157.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,806.40 : 61,123.20 = 26,809.60 : x
  2. Step 2: Convert to fraction form
    40,806.40/61,123.20 = 26,809.60/x
  3. Step 3: Cross multiply
    40,806.40x = 61,123.20 × 26,809.60
  4. Step 4: Simplify right side
    40,806.40x = 1,638,688,542.72
  5. Step 5: Solve for x
    x = 1,638,688,542.72/40,806.40
  6. Step 6: Final answer
    x = 40,157.64

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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.