Home / 60,655.21-90,991.32-21,203.35

Finding the Fourth Proportional to 60,655.21, 90,991.32 and 21,203.35

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Solution

The fourth proportional to 60,655.21, 90,991.32 and 21,203.35 is: 31,808.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,655.21 : 90,991.32 = 21,203.35 : x
  2. Step 2: Convert to fraction form
    60,655.21/90,991.32 = 21,203.35/x
  3. Step 3: Cross multiply
    60,655.21x = 90,991.32 × 21,203.35
  4. Step 4: Simplify right side
    60,655.21x = 1,929,320,804.92
  5. Step 5: Solve for x
    x = 1,929,320,804.92/60,655.21
  6. Step 6: Final answer
    x = 31,808.00

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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.