Finding the Fourth Proportional to 97,877.12, 135,068.16 and 57,038.66
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Solution
The fourth proportional to 97,877.12, 135,068.16 and 57,038.66 is: 78,712.03
Step by Step Solution
- Step 1: Write the proportion equation
97,877.12 : 135,068.16 = 57,038.66 : x - Step 2: Convert to fraction form
97,877.12/135,068.16 = 57,038.66/x - Step 3: Cross multiply
97,877.12x = 135,068.16 × 57,038.66 - Step 4: Simplify right side
97,877.12x = 7,704,106,855.07 - Step 5: Solve for x
x = 7,704,106,855.07/97,877.12 - Step 6: Final answer
x = 78,712.03
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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.