Home / 74,636.12-102,998.94-42,807.98

Finding the Fourth Proportional to 74,636.12, 102,998.94 and 42,807.98

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Solution

The fourth proportional to 74,636.12, 102,998.94 and 42,807.98 is: 59,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,636.12 : 102,998.94 = 42,807.98 : x
  2. Step 2: Convert to fraction form
    74,636.12/102,998.94 = 42,807.98/x
  3. Step 3: Cross multiply
    74,636.12x = 102,998.94 × 42,807.98
  4. Step 4: Simplify right side
    74,636.12x = 4,409,176,563.54
  5. Step 5: Solve for x
    x = 4,409,176,563.54/74,636.12
  6. Step 6: Final answer
    x = 59,075.64

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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.