Home / 51,804.20-77,783.10-40,130.60

Finding the Fourth Proportional to 51,804.20, 77,783.10 and 40,130.60

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Solution

The fourth proportional to 51,804.20, 77,783.10 and 40,130.60 is: 60,255.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,804.20 : 77,783.10 = 40,130.60 : x
  2. Step 2: Convert to fraction form
    51,804.20/77,783.10 = 40,130.60/x
  3. Step 3: Cross multiply
    51,804.20x = 77,783.10 × 40,130.60
  4. Step 4: Simplify right side
    51,804.20x = 3,121,482,472.86
  5. Step 5: Solve for x
    x = 3,121,482,472.86/51,804.20
  6. Step 6: Final answer
    x = 60,255.39

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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.