Home / 51,208.40-76,740.60-40,696.40

Finding the Fourth Proportional to 51,208.40, 76,740.60 and 40,696.40

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Solution

The fourth proportional to 51,208.40, 76,740.60 and 40,696.40 is: 60,987.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,208.40 : 76,740.60 = 40,696.40 : x
  2. Step 2: Convert to fraction form
    51,208.40/76,740.60 = 40,696.40/x
  3. Step 3: Cross multiply
    51,208.40x = 76,740.60 × 40,696.40
  4. Step 4: Simplify right side
    51,208.40x = 3,123,066,153.84
  5. Step 5: Solve for x
    x = 3,123,066,153.84/51,208.40
  6. Step 6: Final answer
    x = 60,987.38

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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.