Home / 45,386.36-68,079.42-19,109.48

Finding the Fourth Proportional to 45,386.36, 68,079.42 and 19,109.48

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Solution

The fourth proportional to 45,386.36, 68,079.42 and 19,109.48 is: 28,664.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,386.36 : 68,079.42 = 19,109.48 : x
  2. Step 2: Convert to fraction form
    45,386.36/68,079.42 = 19,109.48/x
  3. Step 3: Cross multiply
    45,386.36x = 68,079.42 × 19,109.48
  4. Step 4: Simplify right side
    45,386.36x = 1,300,962,314.90
  5. Step 5: Solve for x
    x = 1,300,962,314.90/45,386.36
  6. Step 6: Final answer
    x = 28,664.17

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1.5x scale

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.