Home / 78,888.33-118,099.22-47,628.81

Finding the Fourth Proportional to 78,888.33, 118,099.22 and 47,628.81

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Solution

The fourth proportional to 78,888.33, 118,099.22 and 47,628.81 is: 71,302.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,888.33 : 118,099.22 = 47,628.81 : x
  2. Step 2: Convert to fraction form
    78,888.33/118,099.22 = 47,628.81/x
  3. Step 3: Cross multiply
    78,888.33x = 118,099.22 × 47,628.81
  4. Step 4: Simplify right side
    78,888.33x = 5,624,925,072.38
  5. Step 5: Solve for x
    x = 5,624,925,072.38/78,888.33
  6. Step 6: Final answer
    x = 71,302.37

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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.