Home / 83,973.40-115,907.04-55,313.98

Finding the Fourth Proportional to 83,973.40, 115,907.04 and 55,313.98

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Solution

The fourth proportional to 83,973.40, 115,907.04 and 55,313.98 is: 76,348.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,973.40 : 115,907.04 = 55,313.98 : x
  2. Step 2: Convert to fraction form
    83,973.40/115,907.04 = 55,313.98/x
  3. Step 3: Cross multiply
    83,973.40x = 115,907.04 × 55,313.98
  4. Step 4: Simplify right side
    83,973.40x = 6,411,279,692.42
  5. Step 5: Solve for x
    x = 6,411,279,692.42/83,973.40
  6. Step 6: Final answer
    x = 76,348.94

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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.