Home / 74,961.72-103,444.02-40,971.30

Finding the Fourth Proportional to 74,961.72, 103,444.02 and 40,971.30

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Solution

The fourth proportional to 74,961.72, 103,444.02 and 40,971.30 is: 56,538.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,961.72 : 103,444.02 = 40,971.30 : x
  2. Step 2: Convert to fraction form
    74,961.72/103,444.02 = 40,971.30/x
  3. Step 3: Cross multiply
    74,961.72x = 103,444.02 × 40,971.30
  4. Step 4: Simplify right side
    74,961.72x = 4,238,235,976.63
  5. Step 5: Solve for x
    x = 4,238,235,976.63/74,961.72
  6. Step 6: Final answer
    x = 56,538.67

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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.