Home / 74,060.88-102,203.60-40,069.28

Finding the Fourth Proportional to 74,060.88, 102,203.60 and 40,069.28

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Solution

The fourth proportional to 74,060.88, 102,203.60 and 40,069.28 is: 55,295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,060.88 : 102,203.60 = 40,069.28 : x
  2. Step 2: Convert to fraction form
    74,060.88/102,203.60 = 40,069.28/x
  3. Step 3: Cross multiply
    74,060.88x = 102,203.60 × 40,069.28
  4. Step 4: Simplify right side
    74,060.88x = 4,095,224,665.41
  5. Step 5: Solve for x
    x = 4,095,224,665.41/74,060.88
  6. Step 6: Final answer
    x = 55,295.38

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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.