Finding the Fourth Proportional to 86,530.19, 129,794.70 and 46,567.98
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Solution
The fourth proportional to 86,530.19, 129,794.70 and 46,567.98 is: 69,851.66
Step by Step Solution
- Step 1: Write the proportion equation
86,530.19 : 129,794.70 = 46,567.98 : x - Step 2: Convert to fraction form
86,530.19/129,794.70 = 46,567.98/x - Step 3: Cross multiply
86,530.19x = 129,794.70 × 46,567.98 - Step 4: Simplify right side
86,530.19x = 6,044,276,993.71 - Step 5: Solve for x
x = 6,044,276,993.71/86,530.19 - Step 6: Final answer
x = 69,851.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.