Home / 74,926.56-112,378.50-28,168.50

Finding the Fourth Proportional to 74,926.56, 112,378.50 and 28,168.50

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Solution

The fourth proportional to 74,926.56, 112,378.50 and 28,168.50 is: 42,248.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,926.56 : 112,378.50 = 28,168.50 : x
  2. Step 2: Convert to fraction form
    74,926.56/112,378.50 = 28,168.50/x
  3. Step 3: Cross multiply
    74,926.56x = 112,378.50 × 28,168.50
  4. Step 4: Simplify right side
    74,926.56x = 3,165,533,777.25
  5. Step 5: Solve for x
    x = 3,165,533,777.25/74,926.56
  6. Step 6: Final answer
    x = 42,248.49

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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.