Finding the Fourth Proportional to 97,008.16, 133,869.28 and 56,745.76
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Solution
The fourth proportional to 97,008.16, 133,869.28 and 56,745.76 is: 78,307.99
Step by Step Solution
- Step 1: Write the proportion equation
97,008.16 : 133,869.28 = 56,745.76 : x - Step 2: Convert to fraction form
97,008.16/133,869.28 = 56,745.76/x - Step 3: Cross multiply
97,008.16x = 133,869.28 × 56,745.76 - Step 4: Simplify right side
97,008.16x = 7,596,514,034.25 - Step 5: Solve for x
x = 7,596,514,034.25/97,008.16 - Step 6: Final answer
x = 78,307.99
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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.