Finding the Fourth Proportional to 91,302.12, 125,973.90 and 53,569.08
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Solution
The fourth proportional to 91,302.12, 125,973.90 and 53,569.08 is: 73,911.82
Step by Step Solution
- Step 1: Write the proportion equation
91,302.12 : 125,973.90 = 53,569.08 : x - Step 2: Convert to fraction form
91,302.12/125,973.90 = 53,569.08/x - Step 3: Cross multiply
91,302.12x = 125,973.90 × 53,569.08 - Step 4: Simplify right side
91,302.12x = 6,748,305,927.01 - Step 5: Solve for x
x = 6,748,305,927.01/91,302.12 - Step 6: Final answer
x = 73,911.82
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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.