Home / 68,220.51-102,366.30-51,575.63

Finding the Fourth Proportional to 68,220.51, 102,366.30 and 51,575.63

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Solution

The fourth proportional to 68,220.51, 102,366.30 and 51,575.63 is: 77,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,220.51 : 102,366.30 = 51,575.63 : x
  2. Step 2: Convert to fraction form
    68,220.51/102,366.30 = 51,575.63/x
  3. Step 3: Cross multiply
    68,220.51x = 102,366.30 × 51,575.63
  4. Step 4: Simplify right side
    68,220.51x = 5,279,605,901.44
  5. Step 5: Solve for x
    x = 5,279,605,901.44/68,220.51
  6. Step 6: Final answer
    x = 77,390.30

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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.