Home / 45,391.19-68,048.51-21,685.32

Finding the Fourth Proportional to 45,391.19, 68,048.51 and 21,685.32

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Solution

The fourth proportional to 45,391.19, 68,048.51 and 21,685.32 is: 32,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,391.19 : 68,048.51 = 21,685.32 : x
  2. Step 2: Convert to fraction form
    45,391.19/68,048.51 = 21,685.32/x
  3. Step 3: Cross multiply
    45,391.19x = 68,048.51 × 21,685.32
  4. Step 4: Simplify right side
    45,391.19x = 1,475,653,606.45
  5. Step 5: Solve for x
    x = 1,475,653,606.45/45,391.19
  6. Step 6: Final answer
    x = 32,509.70

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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.