Home / 74,476.29-102,678.52-61,682.34

Finding the Fourth Proportional to 74,476.29, 102,678.52 and 61,682.34

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Solution

The fourth proportional to 74,476.29, 102,678.52 and 61,682.34 is: 85,039.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,476.29 : 102,678.52 = 61,682.34 : x
  2. Step 2: Convert to fraction form
    74,476.29/102,678.52 = 61,682.34/x
  3. Step 3: Cross multiply
    74,476.29x = 102,678.52 × 61,682.34
  4. Step 4: Simplify right side
    74,476.29x = 6,333,451,072.93
  5. Step 5: Solve for x
    x = 6,333,451,072.93/74,476.29
  6. Step 6: Final answer
    x = 85,039.83

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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.