Home / 76,852.36-106,056.05-42,860.89

Finding the Fourth Proportional to 76,852.36, 106,056.05 and 42,860.89

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Solution

The fourth proportional to 76,852.36, 106,056.05 and 42,860.89 is: 59,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,852.36 : 106,056.05 = 42,860.89 : x
  2. Step 2: Convert to fraction form
    76,852.36/106,056.05 = 42,860.89/x
  3. Step 3: Cross multiply
    76,852.36x = 106,056.05 × 42,860.89
  4. Step 4: Simplify right side
    76,852.36x = 4,545,656,692.88
  5. Step 5: Solve for x
    x = 4,545,656,692.88/76,852.36
  6. Step 6: Final answer
    x = 59,147.91

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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.