Home / 78,765.16-108,692.12-46,933.36

Finding the Fourth Proportional to 78,765.16, 108,692.12 and 46,933.36

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Solution

The fourth proportional to 78,765.16, 108,692.12 and 46,933.36 is: 64,765.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,765.16 : 108,692.12 = 46,933.36 : x
  2. Step 2: Convert to fraction form
    78,765.16/108,692.12 = 46,933.36/x
  3. Step 3: Cross multiply
    78,765.16x = 108,692.12 × 46,933.36
  4. Step 4: Simplify right side
    78,765.16x = 5,101,286,397.12
  5. Step 5: Solve for x
    x = 5,101,286,397.12/78,765.16
  6. Step 6: Final answer
    x = 64,765.77

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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.