Home / 74,103.51-102,262.65-40,111.96

Finding the Fourth Proportional to 74,103.51, 102,262.65 and 40,111.96

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Solution

The fourth proportional to 74,103.51, 102,262.65 and 40,111.96 is: 55,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,103.51 : 102,262.65 = 40,111.96 : x
  2. Step 2: Convert to fraction form
    74,103.51/102,262.65 = 40,111.96/x
  3. Step 3: Cross multiply
    74,103.51x = 102,262.65 × 40,111.96
  4. Step 4: Simplify right side
    74,103.51x = 4,101,955,337.59
  5. Step 5: Solve for x
    x = 4,101,955,337.59/74,103.51
  6. Step 6: Final answer
    x = 55,354.40

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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.