Home / 68,916.58-103,312.46-47,866.56

Finding the Fourth Proportional to 68,916.58, 103,312.46 and 47,866.56

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Solution

The fourth proportional to 68,916.58, 103,312.46 and 47,866.56 is: 71,756.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,916.58 : 103,312.46 = 47,866.56 : x
  2. Step 2: Convert to fraction form
    68,916.58/103,312.46 = 47,866.56/x
  3. Step 3: Cross multiply
    68,916.58x = 103,312.46 × 47,866.56
  4. Step 4: Simplify right side
    68,916.58x = 4,945,212,065.34
  5. Step 5: Solve for x
    x = 4,945,212,065.34/68,916.58
  6. Step 6: Final answer
    x = 71,756.49

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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.