Home / 42,745.72-64,113.62-11,583.32

Finding the Fourth Proportional to 42,745.72, 64,113.62 and 11,583.32

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Solution

The fourth proportional to 42,745.72, 64,113.62 and 11,583.32 is: 17,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,745.72 : 64,113.62 = 11,583.32 : x
  2. Step 2: Convert to fraction form
    42,745.72/64,113.62 = 11,583.32/x
  3. Step 3: Cross multiply
    42,745.72x = 64,113.62 × 11,583.32
  4. Step 4: Simplify right side
    42,745.72x = 742,648,576.82
  5. Step 5: Solve for x
    x = 742,648,576.82/42,745.72
  6. Step 6: Final answer
    x = 17,373.64

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1.5x scale

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.