Finding the Fourth Proportional to 88,208.08, 121,660.40 and 61,337.12
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Solution
The fourth proportional to 88,208.08, 121,660.40 and 61,337.12 is: 84,598.81
Step by Step Solution
- Step 1: Write the proportion equation
88,208.08 : 121,660.40 = 61,337.12 : x - Step 2: Convert to fraction form
88,208.08/121,660.40 = 61,337.12/x - Step 3: Cross multiply
88,208.08x = 121,660.40 × 61,337.12 - Step 4: Simplify right side
88,208.08x = 7,462,298,554.05 - Step 5: Solve for x
x = 7,462,298,554.05/88,208.08 - Step 6: Final answer
x = 84,598.81
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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.