Home / 74,424.75-102,712.65-40,897.23

Finding the Fourth Proportional to 74,424.75, 102,712.65 and 40,897.23

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Solution

The fourth proportional to 74,424.75, 102,712.65 and 40,897.23 is: 56,441.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,424.75 : 102,712.65 = 40,897.23 : x
  2. Step 2: Convert to fraction form
    74,424.75/102,712.65 = 40,897.23/x
  3. Step 3: Cross multiply
    74,424.75x = 102,712.65 × 40,897.23
  4. Step 4: Simplify right side
    74,424.75x = 4,200,662,870.96
  5. Step 5: Solve for x
    x = 4,200,662,870.96/74,424.75
  6. Step 6: Final answer
    x = 56,441.75

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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.