Home / 45,430.31-68,146.09-14,265.56

Finding the Fourth Proportional to 45,430.31, 68,146.09 and 14,265.56

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Solution

The fourth proportional to 45,430.31, 68,146.09 and 14,265.56 is: 21,398.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,430.31 : 68,146.09 = 14,265.56 : x
  2. Step 2: Convert to fraction form
    45,430.31/68,146.09 = 14,265.56/x
  3. Step 3: Cross multiply
    45,430.31x = 68,146.09 × 14,265.56
  4. Step 4: Simplify right side
    45,430.31x = 972,142,270.36
  5. Step 5: Solve for x
    x = 972,142,270.36/45,430.31
  6. Step 6: Final answer
    x = 21,398.54

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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.