Finding the Fourth Proportional to 99,032.16, 136,661.82 and 56,590.70
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Solution
The fourth proportional to 99,032.16, 136,661.82 and 56,590.70 is: 78,093.70
Step by Step Solution
- Step 1: Write the proportion equation
99,032.16 : 136,661.82 = 56,590.70 : x - Step 2: Convert to fraction form
99,032.16/136,661.82 = 56,590.70/x - Step 3: Cross multiply
99,032.16x = 136,661.82 × 56,590.70 - Step 4: Simplify right side
99,032.16x = 7,733,787,373.76 - Step 5: Solve for x
x = 7,733,787,373.76/99,032.16 - Step 6: Final answer
x = 78,093.70
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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.