Home / 92,972.55-139,458.83-64,978.95

Finding the Fourth Proportional to 92,972.55, 139,458.83 and 64,978.95

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Solution

The fourth proportional to 92,972.55, 139,458.83 and 64,978.95 is: 97,468.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,972.55 : 139,458.83 = 64,978.95 : x
  2. Step 2: Convert to fraction form
    92,972.55/139,458.83 = 64,978.95/x
  3. Step 3: Cross multiply
    92,972.55x = 139,458.83 × 64,978.95
  4. Step 4: Simplify right side
    92,972.55x = 9,061,888,016.73
  5. Step 5: Solve for x
    x = 9,061,888,016.73/92,972.55
  6. Step 6: Final answer
    x = 97,468.43

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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.