Home / 68,612.23-102,918.35-45,233.20

Finding the Fourth Proportional to 68,612.23, 102,918.35 and 45,233.20

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Solution

The fourth proportional to 68,612.23, 102,918.35 and 45,233.20 is: 67,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,612.23 : 102,918.35 = 45,233.20 : x
  2. Step 2: Convert to fraction form
    68,612.23/102,918.35 = 45,233.20/x
  3. Step 3: Cross multiply
    68,612.23x = 102,918.35 × 45,233.20
  4. Step 4: Simplify right side
    68,612.23x = 4,655,326,309.22
  5. Step 5: Solve for x
    x = 4,655,326,309.22/68,612.23
  6. Step 6: Final answer
    x = 67,849.80

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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.