Home / 68,071.98-93,925.47-39,772.20

Finding the Fourth Proportional to 68,071.98, 93,925.47 and 39,772.20

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Solution

The fourth proportional to 68,071.98, 93,925.47 and 39,772.20 is: 54,877.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,071.98 : 93,925.47 = 39,772.20 : x
  2. Step 2: Convert to fraction form
    68,071.98/93,925.47 = 39,772.20/x
  3. Step 3: Cross multiply
    68,071.98x = 93,925.47 × 39,772.20
  4. Step 4: Simplify right side
    68,071.98x = 3,735,622,577.93
  5. Step 5: Solve for x
    x = 3,735,622,577.93/68,071.98
  6. Step 6: Final answer
    x = 54,877.54

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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.