Finding the Fourth Proportional to 93,778.12, 129,415.62 and 51,335.74
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Solution
The fourth proportional to 93,778.12, 129,415.62 and 51,335.74 is: 70,844.31
Step by Step Solution
- Step 1: Write the proportion equation
93,778.12 : 129,415.62 = 51,335.74 : x - Step 2: Convert to fraction form
93,778.12/129,415.62 = 51,335.74/x - Step 3: Cross multiply
93,778.12x = 129,415.62 × 51,335.74 - Step 4: Simplify right side
93,778.12x = 6,643,646,620.26 - Step 5: Solve for x
x = 6,643,646,620.26/93,778.12 - Step 6: Final answer
x = 70,844.31
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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.