Home / 78,657.08-117,946.98-33,672.07

Finding the Fourth Proportional to 78,657.08, 117,946.98 and 33,672.07

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Solution

The fourth proportional to 78,657.08, 117,946.98 and 33,672.07 is: 50,491.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,657.08 : 117,946.98 = 33,672.07 : x
  2. Step 2: Convert to fraction form
    78,657.08/117,946.98 = 33,672.07/x
  3. Step 3: Cross multiply
    78,657.08x = 117,946.98 × 33,672.07
  4. Step 4: Simplify right side
    78,657.08x = 3,971,519,114.28
  5. Step 5: Solve for x
    x = 3,971,519,114.28/78,657.08
  6. Step 6: Final answer
    x = 50,491.57

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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.