Home / 74,070.05-102,216.94-68,419.22

Finding the Fourth Proportional to 74,070.05, 102,216.94 and 68,419.22

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Solution

The fourth proportional to 74,070.05, 102,216.94 and 68,419.22 is: 94,418.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,070.05 : 102,216.94 = 68,419.22 : x
  2. Step 2: Convert to fraction form
    74,070.05/102,216.94 = 68,419.22/x
  3. Step 3: Cross multiply
    74,070.05x = 102,216.94 × 68,419.22
  4. Step 4: Simplify right side
    74,070.05x = 6,993,602,623.45
  5. Step 5: Solve for x
    x = 6,993,602,623.45/74,070.05
  6. Step 6: Final answer
    x = 94,418.77

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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.