Home / 60,742.32-91,154.64-21,300

Finding the Fourth Proportional to 60,742.32, 91,154.64 and 21,300

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Solution

The fourth proportional to 60,742.32, 91,154.64 and 21,300 is: 31,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,742.32 : 91,154.64 = 21,300 : x
  2. Step 2: Convert to fraction form
    60,742.32/91,154.64 = 21,300/x
  3. Step 3: Cross multiply
    60,742.32x = 91,154.64 × 21,300
  4. Step 4: Simplify right side
    60,742.32x = 1,941,593,832
  5. Step 5: Solve for x
    x = 1,941,593,832/60,742.32
  6. Step 6: Final answer
    x = 31,964.43

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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.