Finding the Fourth Proportional to 110,449.90, 165,683.99 and 39,345.09
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Solution
The fourth proportional to 110,449.90, 165,683.99 and 39,345.09 is: 59,020.89
Step by Step Solution
- Step 1: Write the proportion equation
110,449.90 : 165,683.99 = 39,345.09 : x - Step 2: Convert to fraction form
110,449.90/165,683.99 = 39,345.09/x - Step 3: Cross multiply
110,449.90x = 165,683.99 × 39,345.09 - Step 4: Simplify right side
110,449.90x = 6,518,851,498.11 - Step 5: Solve for x
x = 6,518,851,498.11/110,449.90 - Step 6: Final answer
x = 59,020.89
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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.