Home / 67,458.66-101,155.62-31,890.36

Finding the Fourth Proportional to 67,458.66, 101,155.62 and 31,890.36

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Solution

The fourth proportional to 67,458.66, 101,155.62 and 31,890.36 is: 47,820.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,458.66 : 101,155.62 = 31,890.36 : x
  2. Step 2: Convert to fraction form
    67,458.66/101,155.62 = 31,890.36/x
  3. Step 3: Cross multiply
    67,458.66x = 101,155.62 × 31,890.36
  4. Step 4: Simplify right side
    67,458.66x = 3,225,889,137.82
  5. Step 5: Solve for x
    x = 3,225,889,137.82/67,458.66
  6. Step 6: Final answer
    x = 47,820.24

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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.