Finding the Fourth Proportional to 101,695.73, 140,348.49 and 56,387.93
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Solution
The fourth proportional to 101,695.73, 140,348.49 and 56,387.93 is: 77,819.99
Step by Step Solution
- Step 1: Write the proportion equation
101,695.73 : 140,348.49 = 56,387.93 : x - Step 2: Convert to fraction form
101,695.73/140,348.49 = 56,387.93/x - Step 3: Cross multiply
101,695.73x = 140,348.49 × 56,387.93 - Step 4: Simplify right side
101,695.73x = 7,913,960,829.73 - Step 5: Solve for x
x = 7,913,960,829.73/101,695.73 - Step 6: Final answer
x = 77,819.99
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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.