Finding the Fourth Proportional to 88,830.60, 122,587.74 and 53,013.66
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Solution
The fourth proportional to 88,830.60, 122,587.74 and 53,013.66 is: 73,159.75
Step by Step Solution
- Step 1: Write the proportion equation
88,830.60 : 122,587.74 = 53,013.66 : x - Step 2: Convert to fraction form
88,830.60/122,587.74 = 53,013.66/x - Step 3: Cross multiply
88,830.60x = 122,587.74 × 53,013.66 - Step 4: Simplify right side
88,830.60x = 6,498,824,768.53 - Step 5: Solve for x
x = 6,498,824,768.53/88,830.60 - Step 6: Final answer
x = 73,159.75
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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.