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Finding the Fourth Proportional to 40,058.99, 55,281.76 and 22,155.20

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Solution

The fourth proportional to 40,058.99, 55,281.76 and 22,155.20 is: 30,574.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,058.99 : 55,281.76 = 22,155.20 : x
  2. Step 2: Convert to fraction form
    40,058.99/55,281.76 = 22,155.20/x
  3. Step 3: Cross multiply
    40,058.99x = 55,281.76 × 22,155.20
  4. Step 4: Simplify right side
    40,058.99x = 1,224,778,449.15
  5. Step 5: Solve for x
    x = 1,224,778,449.15/40,058.99
  6. Step 6: Final answer
    x = 30,574.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.