Home / 45,420.74-62,645.25-38,728.58

Finding the Fourth Proportional to 45,420.74, 62,645.25 and 38,728.58

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Solution

The fourth proportional to 45,420.74, 62,645.25 and 38,728.58 is: 53,415.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.74 : 62,645.25 = 38,728.58 : x
  2. Step 2: Convert to fraction form
    45,420.74/62,645.25 = 38,728.58/x
  3. Step 3: Cross multiply
    45,420.74x = 62,645.25 × 38,728.58
  4. Step 4: Simplify right side
    45,420.74x = 2,426,161,576.25
  5. Step 5: Solve for x
    x = 2,426,161,576.25/45,420.74
  6. Step 6: Final answer
    x = 53,415.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.