Home / 76,013.42-104,889.44-42,017.32

Finding the Fourth Proportional to 76,013.42, 104,889.44 and 42,017.32

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Solution

The fourth proportional to 76,013.42, 104,889.44 and 42,017.32 is: 57,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,013.42 : 104,889.44 = 42,017.32 : x
  2. Step 2: Convert to fraction form
    76,013.42/104,889.44 = 42,017.32/x
  3. Step 3: Cross multiply
    76,013.42x = 104,889.44 × 42,017.32
  4. Step 4: Simplify right side
    76,013.42x = 4,407,172,430.57
  5. Step 5: Solve for x
    x = 4,407,172,430.57/76,013.42
  6. Step 6: Final answer
    x = 57,978.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.