Finding the Fourth Proportional to 104,628.15, 144,385.25 and 56,881.08
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Solution
The fourth proportional to 104,628.15, 144,385.25 and 56,881.08 is: 78,495.02
Step by Step Solution
- Step 1: Write the proportion equation
104,628.15 : 144,385.25 = 56,881.08 : x - Step 2: Convert to fraction form
104,628.15/144,385.25 = 56,881.08/x - Step 3: Cross multiply
104,628.15x = 144,385.25 × 56,881.08 - Step 4: Simplify right side
104,628.15x = 8,212,788,671.66 - Step 5: Solve for x
x = 8,212,788,671.66/104,628.15 - Step 6: Final answer
x = 78,495.02
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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.