Home / 74,609.08-102,969.42-42,777.88

Finding the Fourth Proportional to 74,609.08, 102,969.42 and 42,777.88

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Solution

The fourth proportional to 74,609.08, 102,969.42 and 42,777.88 is: 59,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,609.08 : 102,969.42 = 42,777.88 : x
  2. Step 2: Convert to fraction form
    74,609.08/102,969.42 = 42,777.88/x
  3. Step 3: Cross multiply
    74,609.08x = 102,969.42 × 42,777.88
  4. Step 4: Simplify right side
    74,609.08x = 4,404,813,492.43
  5. Step 5: Solve for x
    x = 4,404,813,492.43/74,609.08
  6. Step 6: Final answer
    x = 59,038.57

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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.