Home / 85,129.40-117,483.89-46,888.94

Finding the Fourth Proportional to 85,129.40, 117,483.89 and 46,888.94

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Solution

The fourth proportional to 85,129.40, 117,483.89 and 46,888.94 is: 64,709.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,129.40 : 117,483.89 = 46,888.94 : x
  2. Step 2: Convert to fraction form
    85,129.40/117,483.89 = 46,888.94/x
  3. Step 3: Cross multiply
    85,129.40x = 117,483.89 × 46,888.94
  4. Step 4: Simplify right side
    85,129.40x = 5,508,695,128.44
  5. Step 5: Solve for x
    x = 5,508,695,128.44/85,129.40
  6. Step 6: Final answer
    x = 64,709.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.