Finding the Fourth Proportional to 99,875.03, 137,826.62 and 54,552.99
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Solution
The fourth proportional to 99,875.03, 137,826.62 and 54,552.99 is: 75,282.63
Step by Step Solution
- Step 1: Write the proportion equation
99,875.03 : 137,826.62 = 54,552.99 : x - Step 2: Convert to fraction form
99,875.03/137,826.62 = 54,552.99/x - Step 3: Cross multiply
99,875.03x = 137,826.62 × 54,552.99 - Step 4: Simplify right side
99,875.03x = 7,518,854,671.25 - Step 5: Solve for x
x = 7,518,854,671.25/99,875.03 - Step 6: Final answer
x = 75,282.63
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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.