Finding the Fourth Proportional to 97,938.88, 135,153.06 and 55,511.08
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Solution
The fourth proportional to 97,938.88, 135,153.06 and 55,511.08 is: 76,603.82
Step by Step Solution
- Step 1: Write the proportion equation
97,938.88 : 135,153.06 = 55,511.08 : x - Step 2: Convert to fraction form
97,938.88/135,153.06 = 55,511.08/x - Step 3: Cross multiply
97,938.88x = 135,153.06 × 55,511.08 - Step 4: Simplify right side
97,938.88x = 7,502,492,325.90 - Step 5: Solve for x
x = 7,502,492,325.90/97,938.88 - Step 6: Final answer
x = 76,603.82
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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.