Home / 74,938.77-103,415.74-40,947.98

Finding the Fourth Proportional to 74,938.77, 103,415.74 and 40,947.98

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Solution

The fourth proportional to 74,938.77, 103,415.74 and 40,947.98 is: 56,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,938.77 : 103,415.74 = 40,947.98 : x
  2. Step 2: Convert to fraction form
    74,938.77/103,415.74 = 40,947.98/x
  3. Step 3: Cross multiply
    74,938.77x = 103,415.74 × 40,947.98
  4. Step 4: Simplify right side
    74,938.77x = 4,234,665,615.47
  5. Step 5: Solve for x
    x = 4,234,665,615.47/74,938.77
  6. Step 6: Final answer
    x = 56,508.34

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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.