Home / 74,340.72-102,580.02-42,511.77

Finding the Fourth Proportional to 74,340.72, 102,580.02 and 42,511.77

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Solution

The fourth proportional to 74,340.72, 102,580.02 and 42,511.77 is: 58,660.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,340.72 : 102,580.02 = 42,511.77 : x
  2. Step 2: Convert to fraction form
    74,340.72/102,580.02 = 42,511.77/x
  3. Step 3: Cross multiply
    74,340.72x = 102,580.02 × 42,511.77
  4. Step 4: Simplify right side
    74,340.72x = 4,360,858,216.84
  5. Step 5: Solve for x
    x = 4,360,858,216.84/74,340.72
  6. Step 6: Final answer
    x = 58,660.42

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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.