Home / 66,186.78-99,291.15-30,683.67

Finding the Fourth Proportional to 66,186.78, 99,291.15 and 30,683.67

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Solution

The fourth proportional to 66,186.78, 99,291.15 and 30,683.67 is: 46,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,186.78 : 99,291.15 = 30,683.67 : x
  2. Step 2: Convert to fraction form
    66,186.78/99,291.15 = 30,683.67/x
  3. Step 3: Cross multiply
    66,186.78x = 99,291.15 × 30,683.67
  4. Step 4: Simplify right side
    66,186.78x = 3,046,616,880.52
  5. Step 5: Solve for x
    x = 3,046,616,880.52/66,186.78
  6. Step 6: Final answer
    x = 46,030.60

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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.