Finding the Fourth Proportional to 75,379.68, 113,070.24 and 19,975.68
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Solution
The fourth proportional to 75,379.68, 113,070.24 and 19,975.68 is: 29,963.71
Step by Step Solution
- Step 1: Write the proportion equation
75,379.68 : 113,070.24 = 19,975.68 : x - Step 2: Convert to fraction form
75,379.68/113,070.24 = 19,975.68/x - Step 3: Cross multiply
75,379.68x = 113,070.24 × 19,975.68 - Step 4: Simplify right side
75,379.68x = 2,258,654,931.76 - Step 5: Solve for x
x = 2,258,654,931.76/75,379.68 - Step 6: Final answer
x = 29,963.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.