Home / 74,872.22-112,312.64-28,125.50

Finding the Fourth Proportional to 74,872.22, 112,312.64 and 28,125.50

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Solution

The fourth proportional to 74,872.22, 112,312.64 and 28,125.50 is: 42,189.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,872.22 : 112,312.64 = 28,125.50 : x
  2. Step 2: Convert to fraction form
    74,872.22/112,312.64 = 28,125.50/x
  3. Step 3: Cross multiply
    74,872.22x = 112,312.64 × 28,125.50
  4. Step 4: Simplify right side
    74,872.22x = 3,158,848,665.07
  5. Step 5: Solve for x
    x = 3,158,848,665.07/74,872.22
  6. Step 6: Final answer
    x = 42,189.87

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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.