Home / 68,020.20-93,870.60-37,805.28

Finding the Fourth Proportional to 68,020.20, 93,870.60 and 37,805.28

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Solution

The fourth proportional to 68,020.20, 93,870.60 and 37,805.28 is: 52,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,020.20 : 93,870.60 = 37,805.28 : x
  2. Step 2: Convert to fraction form
    68,020.20/93,870.60 = 37,805.28/x
  3. Step 3: Cross multiply
    68,020.20x = 93,870.60 × 37,805.28
  4. Step 4: Simplify right side
    68,020.20x = 3,548,804,316.77
  5. Step 5: Solve for x
    x = 3,548,804,316.77/68,020.20
  6. Step 6: Final answer
    x = 52,172.80

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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.