Finding the Fourth Proportional to 97,926.30, 135,128.12 and 57,637.66
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Solution
The fourth proportional to 97,926.30, 135,128.12 and 57,637.66 is: 79,533.98
Step by Step Solution
- Step 1: Write the proportion equation
97,926.30 : 135,128.12 = 57,637.66 : x - Step 2: Convert to fraction form
97,926.30/135,128.12 = 57,637.66/x - Step 3: Cross multiply
97,926.30x = 135,128.12 × 57,637.66 - Step 4: Simplify right side
97,926.30x = 7,788,468,637.00 - Step 5: Solve for x
x = 7,788,468,637.00/97,926.30 - Step 6: Final answer
x = 79,533.98
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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.