Home / 78,255.02-117,389.57-22,095.70

Finding the Fourth Proportional to 78,255.02, 117,389.57 and 22,095.70

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Solution

The fourth proportional to 78,255.02, 117,389.57 and 22,095.70 is: 33,145.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,255.02 : 117,389.57 = 22,095.70 : x
  2. Step 2: Convert to fraction form
    78,255.02/117,389.57 = 22,095.70/x
  3. Step 3: Cross multiply
    78,255.02x = 117,389.57 × 22,095.70
  4. Step 4: Simplify right side
    78,255.02x = 2,593,804,721.85
  5. Step 5: Solve for x
    x = 2,593,804,721.85/78,255.02
  6. Step 6: Final answer
    x = 33,145.54

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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.