Finding the Fourth Proportional to 77,039.16, 106,312.74 and 43,048.14
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Solution
The fourth proportional to 77,039.16, 106,312.74 and 43,048.14 is: 59,405.71
Step by Step Solution
- Step 1: Write the proportion equation
77,039.16 : 106,312.74 = 43,048.14 : x - Step 2: Convert to fraction form
77,039.16/106,312.74 = 43,048.14/x - Step 3: Cross multiply
77,039.16x = 106,312.74 × 43,048.14 - Step 4: Simplify right side
77,039.16x = 4,576,565,715.30 - Step 5: Solve for x
x = 4,576,565,715.30/77,039.16 - Step 6: Final answer
x = 59,405.71
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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.