Home / 42,067.36-63,115.44-18,710.08

Finding the Fourth Proportional to 42,067.36, 63,115.44 and 18,710.08

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Solution

The fourth proportional to 42,067.36, 63,115.44 and 18,710.08 is: 28,071.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,067.36 : 63,115.44 = 18,710.08 : x
  2. Step 2: Convert to fraction form
    42,067.36/63,115.44 = 18,710.08/x
  3. Step 3: Cross multiply
    42,067.36x = 63,115.44 × 18,710.08
  4. Step 4: Simplify right side
    42,067.36x = 1,180,894,931.64
  5. Step 5: Solve for x
    x = 1,180,894,931.64/42,067.36
  6. Step 6: Final answer
    x = 28,071.52

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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.