Finding the Fourth Proportional to 97,748.64, 134,869.68 and 57,460.32
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Solution
The fourth proportional to 97,748.64, 134,869.68 and 57,460.32 is: 79,281.46
Step by Step Solution
- Step 1: Write the proportion equation
97,748.64 : 134,869.68 = 57,460.32 : x - Step 2: Convert to fraction form
97,748.64/134,869.68 = 57,460.32/x - Step 3: Cross multiply
97,748.64x = 134,869.68 × 57,460.32 - Step 4: Simplify right side
97,748.64x = 7,749,654,971.10 - Step 5: Solve for x
x = 7,749,654,971.10/97,748.64 - Step 6: Final answer
x = 79,281.46
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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.