Home / 78,271.37-117,411.95-22,115.80

Finding the Fourth Proportional to 78,271.37, 117,411.95 and 22,115.80

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Solution

The fourth proportional to 78,271.37, 117,411.95 and 22,115.80 is: 33,175.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,271.37 : 117,411.95 = 22,115.80 : x
  2. Step 2: Convert to fraction form
    78,271.37/117,411.95 = 22,115.80/x
  3. Step 3: Cross multiply
    78,271.37x = 117,411.95 × 22,115.80
  4. Step 4: Simplify right side
    78,271.37x = 2,596,658,621.02
  5. Step 5: Solve for x
    x = 2,596,658,621.02/78,271.37
  6. Step 6: Final answer
    x = 33,175.07

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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.