Finding the Fourth Proportional to 77,710.41, 107,240.19 and 43,718.91
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Solution
The fourth proportional to 77,710.41, 107,240.19 and 43,718.91 is: 60,331.99
Step by Step Solution
- Step 1: Write the proportion equation
77,710.41 : 107,240.19 = 43,718.91 : x - Step 2: Convert to fraction form
77,710.41/107,240.19 = 43,718.91/x - Step 3: Cross multiply
77,710.41x = 107,240.19 × 43,718.91 - Step 4: Simplify right side
77,710.41x = 4,688,423,648.90 - Step 5: Solve for x
x = 4,688,423,648.90/77,710.41 - Step 6: Final answer
x = 60,331.99
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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.