Finding the Fourth Proportional to 99,058.08, 136,709.58 and 56,608.38
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Solution
The fourth proportional to 99,058.08, 136,709.58 and 56,608.38 is: 78,124.95
Step by Step Solution
- Step 1: Write the proportion equation
99,058.08 : 136,709.58 = 56,608.38 : x - Step 2: Convert to fraction form
99,058.08/136,709.58 = 56,608.38/x - Step 3: Cross multiply
99,058.08x = 136,709.58 × 56,608.38 - Step 4: Simplify right side
99,058.08x = 7,738,907,854.28 - Step 5: Solve for x
x = 7,738,907,854.28/99,058.08 - Step 6: Final answer
x = 78,124.95
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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.