Finding the Fourth Proportional to 88,223.56, 121,774.26 and 53,780.74
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Solution
The fourth proportional to 88,223.56, 121,774.26 and 53,780.74 is: 74,233.12
Step by Step Solution
- Step 1: Write the proportion equation
88,223.56 : 121,774.26 = 53,780.74 : x - Step 2: Convert to fraction form
88,223.56/121,774.26 = 53,780.74/x - Step 3: Cross multiply
88,223.56x = 121,774.26 × 53,780.74 - Step 4: Simplify right side
88,223.56x = 6,549,109,815.75 - Step 5: Solve for x
x = 6,549,109,815.75/88,223.56 - Step 6: Final answer
x = 74,233.12
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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.