Finding the Fourth Proportional to 97,913.52, 135,115.36 and 55,471.12
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Solution
The fourth proportional to 97,913.52, 135,115.36 and 55,471.12 is: 76,547.14
Step by Step Solution
- Step 1: Write the proportion equation
97,913.52 : 135,115.36 = 55,471.12 : x - Step 2: Convert to fraction form
97,913.52/135,115.36 = 55,471.12/x - Step 3: Cross multiply
97,913.52x = 135,115.36 × 55,471.12 - Step 4: Simplify right side
97,913.52x = 7,495,000,348.40 - Step 5: Solve for x
x = 7,495,000,348.40/97,913.52 - Step 6: Final answer
x = 76,547.14
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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.