Home / 68,085.10-102,127.59-20,700.58

Finding the Fourth Proportional to 68,085.10, 102,127.59 and 20,700.58

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Solution

The fourth proportional to 68,085.10, 102,127.59 and 20,700.58 is: 31,050.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,085.10 : 102,127.59 = 20,700.58 : x
  2. Step 2: Convert to fraction form
    68,085.10/102,127.59 = 20,700.58/x
  3. Step 3: Cross multiply
    68,085.10x = 102,127.59 × 20,700.58
  4. Step 4: Simplify right side
    68,085.10x = 2,114,100,347.00
  5. Step 5: Solve for x
    x = 2,114,100,347.00/68,085.10
  6. Step 6: Final answer
    x = 31,050.85

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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.