Finding the Fourth Proportional to 84,026.36, 115,986.11 and 75,058.29
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Solution
The fourth proportional to 84,026.36, 115,986.11 and 75,058.29 is: 103,607.00
Step by Step Solution
- Step 1: Write the proportion equation
84,026.36 : 115,986.11 = 75,058.29 : x - Step 2: Convert to fraction form
84,026.36/115,986.11 = 75,058.29/x - Step 3: Cross multiply
84,026.36x = 115,986.11 × 75,058.29 - Step 4: Simplify right side
84,026.36x = 8,705,718,705.06 - Step 5: Solve for x
x = 8,705,718,705.06/84,026.36 - Step 6: Final answer
x = 103,607.00
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1.5x scale
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.