Home / 60,718.32-91,118.64-21,276

Finding the Fourth Proportional to 60,718.32, 91,118.64 and 21,276

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Solution

The fourth proportional to 60,718.32, 91,118.64 and 21,276 is: 31,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,718.32 : 91,118.64 = 21,276 : x
  2. Step 2: Convert to fraction form
    60,718.32/91,118.64 = 21,276/x
  3. Step 3: Cross multiply
    60,718.32x = 91,118.64 × 21,276
  4. Step 4: Simplify right side
    60,718.32x = 1,938,640,184.64
  5. Step 5: Solve for x
    x = 1,938,640,184.64/60,718.32
  6. Step 6: Final answer
    x = 31,928.42

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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.