Home / 51,428.80-77,258.40-49,329.60

Finding the Fourth Proportional to 51,428.80, 77,258.40 and 49,329.60

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Solution

The fourth proportional to 51,428.80, 77,258.40 and 49,329.60 is: 74,104.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,428.80 : 77,258.40 = 49,329.60 : x
  2. Step 2: Convert to fraction form
    51,428.80/77,258.40 = 49,329.60/x
  3. Step 3: Cross multiply
    51,428.80x = 77,258.40 × 49,329.60
  4. Step 4: Simplify right side
    51,428.80x = 3,811,125,968.64
  5. Step 5: Solve for x
    x = 3,811,125,968.64/51,428.80
  6. Step 6: Final answer
    x = 74,104.90

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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.