Home / 91,583.90-137,395.58-28,402.76

Finding the Fourth Proportional to 91,583.90, 137,395.58 and 28,402.76

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Solution

The fourth proportional to 91,583.90, 137,395.58 and 28,402.76 is: 42,610.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,583.90 : 137,395.58 = 28,402.76 : x
  2. Step 2: Convert to fraction form
    91,583.90/137,395.58 = 28,402.76/x
  3. Step 3: Cross multiply
    91,583.90x = 137,395.58 × 28,402.76
  4. Step 4: Simplify right side
    91,583.90x = 3,902,413,683.80
  5. Step 5: Solve for x
    x = 3,902,413,683.80/91,583.90
  6. Step 6: Final answer
    x = 42,610.26

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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.