Home / 42,133.64-63,239.34-21,371.72

Finding the Fourth Proportional to 42,133.64, 63,239.34 and 21,371.72

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Solution

The fourth proportional to 42,133.64, 63,239.34 and 21,371.72 is: 32,077.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,133.64 : 63,239.34 = 21,371.72 : x
  2. Step 2: Convert to fraction form
    42,133.64/63,239.34 = 21,371.72/x
  3. Step 3: Cross multiply
    42,133.64x = 63,239.34 × 21,371.72
  4. Step 4: Simplify right side
    42,133.64x = 1,351,533,467.46
  5. Step 5: Solve for x
    x = 1,351,533,467.46/42,133.64
  6. Step 6: Final answer
    x = 32,077.30

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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.