Home / 68,390.06-94,370.55-39,700.94

Finding the Fourth Proportional to 68,390.06, 94,370.55 and 39,700.94

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Solution

The fourth proportional to 68,390.06, 94,370.55 and 39,700.94 is: 54,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,390.06 : 94,370.55 = 39,700.94 : x
  2. Step 2: Convert to fraction form
    68,390.06/94,370.55 = 39,700.94/x
  3. Step 3: Cross multiply
    68,390.06x = 94,370.55 × 39,700.94
  4. Step 4: Simplify right side
    68,390.06x = 3,746,599,543.32
  5. Step 5: Solve for x
    x = 3,746,599,543.32/68,390.06
  6. Step 6: Final answer
    x = 54,782.81

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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.