Home / 68,021.19-102,005.10-25,878.90

Finding the Fourth Proportional to 68,021.19, 102,005.10 and 25,878.90

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Solution

The fourth proportional to 68,021.19, 102,005.10 and 25,878.90 is: 38,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,021.19 : 102,005.10 = 25,878.90 : x
  2. Step 2: Convert to fraction form
    68,021.19/102,005.10 = 25,878.90/x
  3. Step 3: Cross multiply
    68,021.19x = 102,005.10 × 25,878.90
  4. Step 4: Simplify right side
    68,021.19x = 2,639,779,782.39
  5. Step 5: Solve for x
    x = 2,639,779,782.39/68,021.19
  6. Step 6: Final answer
    x = 38,808.20

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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.