Home / 42,742.26-64,120.77-19,058.22

Finding the Fourth Proportional to 42,742.26, 64,120.77 and 19,058.22

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Solution

The fourth proportional to 42,742.26, 64,120.77 and 19,058.22 is: 28,590.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,742.26 : 64,120.77 = 19,058.22 : x
  2. Step 2: Convert to fraction form
    42,742.26/64,120.77 = 19,058.22/x
  3. Step 3: Cross multiply
    42,742.26x = 64,120.77 × 19,058.22
  4. Step 4: Simplify right side
    42,742.26x = 1,222,027,741.23
  5. Step 5: Solve for x
    x = 1,222,027,741.23/42,742.26
  6. Step 6: Final answer
    x = 28,590.62

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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.