Home / 45,435.32-68,155.70-14,270.57

Finding the Fourth Proportional to 45,435.32, 68,155.70 and 14,270.57

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Solution

The fourth proportional to 45,435.32, 68,155.70 and 14,270.57 is: 21,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,435.32 : 68,155.70 = 14,270.57 : x
  2. Step 2: Convert to fraction form
    45,435.32/68,155.70 = 14,270.57/x
  3. Step 3: Cross multiply
    45,435.32x = 68,155.70 × 14,270.57
  4. Step 4: Simplify right side
    45,435.32x = 972,620,275.62
  5. Step 5: Solve for x
    x = 972,620,275.62/45,435.32
  6. Step 6: Final answer
    x = 21,406.70

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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.