Home / 47,205.36-71,089.29-42,578.64

Finding the Fourth Proportional to 47,205.36, 71,089.29 and 42,578.64

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Solution

The fourth proportional to 47,205.36, 71,089.29 and 42,578.64 is: 64,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,205.36 : 71,089.29 = 42,578.64 : x
  2. Step 2: Convert to fraction form
    47,205.36/71,089.29 = 42,578.64/x
  3. Step 3: Cross multiply
    47,205.36x = 71,089.29 × 42,578.64
  4. Step 4: Simplify right side
    47,205.36x = 3,026,885,286.77
  5. Step 5: Solve for x
    x = 3,026,885,286.77/47,205.36
  6. Step 6: Final answer
    x = 64,121.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.