Home / 68,685.38-94,779.45-38,877.38

Finding the Fourth Proportional to 68,685.38, 94,779.45 and 38,877.38

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Solution

The fourth proportional to 68,685.38, 94,779.45 and 38,877.38 is: 53,647.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,685.38 : 94,779.45 = 38,877.38 : x
  2. Step 2: Convert to fraction form
    68,685.38/94,779.45 = 38,877.38/x
  3. Step 3: Cross multiply
    68,685.38x = 94,779.45 × 38,877.38
  4. Step 4: Simplify right side
    68,685.38x = 3,684,776,693.84
  5. Step 5: Solve for x
    x = 3,684,776,693.84/68,685.38
  6. Step 6: Final answer
    x = 53,647.18

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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.