Finding the Fourth Proportional to 96,972.24, 133,823.04 and 72,730.56
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Solution
The fourth proportional to 96,972.24, 133,823.04 and 72,730.56 is: 100,369.18
Step by Step Solution
- Step 1: Write the proportion equation
96,972.24 : 133,823.04 = 72,730.56 : x - Step 2: Convert to fraction form
96,972.24/133,823.04 = 72,730.56/x - Step 3: Cross multiply
96,972.24x = 133,823.04 × 72,730.56 - Step 4: Simplify right side
96,972.24x = 9,733,024,640.10 - Step 5: Solve for x
x = 9,733,024,640.10/96,972.24 - Step 6: Final answer
x = 100,369.18
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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.