Home / 92,948.40-139,268.70-53,436.60

Finding the Fourth Proportional to 92,948.40, 139,268.70 and 53,436.60

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Solution

The fourth proportional to 92,948.40, 139,268.70 and 53,436.60 is: 80,066.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,948.40 : 139,268.70 = 53,436.60 : x
  2. Step 2: Convert to fraction form
    92,948.40/139,268.70 = 53,436.60/x
  3. Step 3: Cross multiply
    92,948.40x = 139,268.70 × 53,436.60
  4. Step 4: Simplify right side
    92,948.40x = 7,442,045,814.42
  5. Step 5: Solve for x
    x = 7,442,045,814.42/92,948.40
  6. Step 6: Final answer
    x = 80,066.42

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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.