Finding the Fourth Proportional to 75,135.29, 103,698.08 and 42,869.75
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Solution
The fourth proportional to 75,135.29, 103,698.08 and 42,869.75 is: 59,166.74
Step by Step Solution
- Step 1: Write the proportion equation
75,135.29 : 103,698.08 = 42,869.75 : x - Step 2: Convert to fraction form
75,135.29/103,698.08 = 42,869.75/x - Step 3: Cross multiply
75,135.29x = 103,698.08 × 42,869.75 - Step 4: Simplify right side
75,135.29x = 4,445,510,032.24 - Step 5: Solve for x
x = 4,445,510,032.24/75,135.29 - Step 6: Final answer
x = 59,166.74
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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.