Home / 86,307.12-129,273.30-41,840.55

Finding the Fourth Proportional to 86,307.12, 129,273.30 and 41,840.55

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Solution

The fourth proportional to 86,307.12, 129,273.30 and 41,840.55 is: 62,669.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,307.12 : 129,273.30 = 41,840.55 : x
  2. Step 2: Convert to fraction form
    86,307.12/129,273.30 = 41,840.55/x
  3. Step 3: Cross multiply
    86,307.12x = 129,273.30 × 41,840.55
  4. Step 4: Simplify right side
    86,307.12x = 5,408,865,972.32
  5. Step 5: Solve for x
    x = 5,408,865,972.32/86,307.12
  6. Step 6: Final answer
    x = 62,669.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.