Home / 78,182.04-117,271.44-19,018.02

Finding the Fourth Proportional to 78,182.04, 117,271.44 and 19,018.02

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Solution

The fourth proportional to 78,182.04, 117,271.44 and 19,018.02 is: 28,526.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,182.04 : 117,271.44 = 19,018.02 : x
  2. Step 2: Convert to fraction form
    78,182.04/117,271.44 = 19,018.02/x
  3. Step 3: Cross multiply
    78,182.04x = 117,271.44 × 19,018.02
  4. Step 4: Simplify right side
    78,182.04x = 2,230,270,591.35
  5. Step 5: Solve for x
    x = 2,230,270,591.35/78,182.04
  6. Step 6: Final answer
    x = 28,526.64

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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.