Home / 73,870.20-102,629.05-72,984.47

Finding the Fourth Proportional to 73,870.20, 102,629.05 and 72,984.47

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Solution

The fourth proportional to 73,870.20, 102,629.05 and 72,984.47 is: 101,398.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,870.20 : 102,629.05 = 72,984.47 : x
  2. Step 2: Convert to fraction form
    73,870.20/102,629.05 = 72,984.47/x
  3. Step 3: Cross multiply
    73,870.20x = 102,629.05 × 72,984.47
  4. Step 4: Simplify right side
    73,870.20x = 7,490,326,125.25
  5. Step 5: Solve for x
    x = 7,490,326,125.25/73,870.20
  6. Step 6: Final answer
    x = 101,398.48

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.