Finding the Fourth Proportional to 88,678.96, 122,365.92 and 56,417.28
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Solution
The fourth proportional to 88,678.96, 122,365.92 and 56,417.28 is: 77,848.82
Step by Step Solution
- Step 1: Write the proportion equation
88,678.96 : 122,365.92 = 56,417.28 : x - Step 2: Convert to fraction form
88,678.96/122,365.92 = 56,417.28/x - Step 3: Cross multiply
88,678.96x = 122,365.92 × 56,417.28 - Step 4: Simplify right side
88,678.96x = 6,903,552,371.10 - Step 5: Solve for x
x = 6,903,552,371.10/88,678.96 - Step 6: Final answer
x = 77,848.82
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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.