Home / 74,504.20-102,790.63-42,235.36

Finding the Fourth Proportional to 74,504.20, 102,790.63 and 42,235.36

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Solution

The fourth proportional to 74,504.20, 102,790.63 and 42,235.36 is: 58,270.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,504.20 : 102,790.63 = 42,235.36 : x
  2. Step 2: Convert to fraction form
    74,504.20/102,790.63 = 42,235.36/x
  3. Step 3: Cross multiply
    74,504.20x = 102,790.63 × 42,235.36
  4. Step 4: Simplify right side
    74,504.20x = 4,341,398,748.72
  5. Step 5: Solve for x
    x = 4,341,398,748.72/74,504.20
  6. Step 6: Final answer
    x = 58,270.52

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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.