Finding the Fourth Proportional to 101,367.65, 139,881.71 and 56,042.99
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Solution
The fourth proportional to 101,367.65, 139,881.71 and 56,042.99 is: 77,336.20
Step by Step Solution
- Step 1: Write the proportion equation
101,367.65 : 139,881.71 = 56,042.99 : x - Step 2: Convert to fraction form
101,367.65/139,881.71 = 56,042.99/x - Step 3: Cross multiply
101,367.65x = 139,881.71 × 56,042.99 - Step 4: Simplify right side
101,367.65x = 7,839,388,994.50 - Step 5: Solve for x
x = 7,839,388,994.50/101,367.65 - Step 6: Final answer
x = 77,336.20
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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.