Home / 99,327.20-137,048.64-61,583.36

Finding the Fourth Proportional to 99,327.20, 137,048.64 and 61,583.36

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Solution

The fourth proportional to 99,327.20, 137,048.64 and 61,583.36 is: 84,970.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,327.20 : 137,048.64 = 61,583.36 : x
  2. Step 2: Convert to fraction form
    99,327.20/137,048.64 = 61,583.36/x
  3. Step 3: Cross multiply
    99,327.20x = 137,048.64 × 61,583.36
  4. Step 4: Simplify right side
    99,327.20x = 8,439,915,734.63
  5. Step 5: Solve for x
    x = 8,439,915,734.63/99,327.20
  6. Step 6: Final answer
    x = 84,970.84

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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.