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Finding the Fourth Proportional to 85,290.93, 117,699.60 and 47,050.51

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Solution

The fourth proportional to 85,290.93, 117,699.60 and 47,050.51 is: 64,928.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,290.93 : 117,699.60 = 47,050.51 : x
  2. Step 2: Convert to fraction form
    85,290.93/117,699.60 = 47,050.51/x
  3. Step 3: Cross multiply
    85,290.93x = 117,699.60 × 47,050.51
  4. Step 4: Simplify right side
    85,290.93x = 5,537,826,530.36
  5. Step 5: Solve for x
    x = 5,537,826,530.36/85,290.93
  6. Step 6: Final answer
    x = 64,928.67

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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.