Home / 78,880.23-118,237.86-34,495.20

Finding the Fourth Proportional to 78,880.23, 118,237.86 and 34,495.20

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Solution

The fourth proportional to 78,880.23, 118,237.86 and 34,495.20 is: 51,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,880.23 : 118,237.86 = 34,495.20 : x
  2. Step 2: Convert to fraction form
    78,880.23/118,237.86 = 34,495.20/x
  3. Step 3: Cross multiply
    78,880.23x = 118,237.86 × 34,495.20
  4. Step 4: Simplify right side
    78,880.23x = 4,078,638,628.27
  5. Step 5: Solve for x
    x = 4,078,638,628.27/78,880.23
  6. Step 6: Final answer
    x = 51,706.73

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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.