Home / 45,117.82-67,683.21-13,955.50

Finding the Fourth Proportional to 45,117.82, 67,683.21 and 13,955.50

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Solution

The fourth proportional to 45,117.82, 67,683.21 and 13,955.50 is: 20,935.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,117.82 : 67,683.21 = 13,955.50 : x
  2. Step 2: Convert to fraction form
    45,117.82/67,683.21 = 13,955.50/x
  3. Step 3: Cross multiply
    45,117.82x = 67,683.21 × 13,955.50
  4. Step 4: Simplify right side
    45,117.82x = 944,553,037.16
  5. Step 5: Solve for x
    x = 944,553,037.16/45,117.82
  6. Step 6: Final answer
    x = 20,935.25

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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.