Finding the Fourth Proportional to 94,781.20, 130,792.80 and 58,970.08
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Solution
The fourth proportional to 94,781.20, 130,792.80 and 58,970.08 is: 81,375.44
Step by Step Solution
- Step 1: Write the proportion equation
94,781.20 : 130,792.80 = 58,970.08 : x - Step 2: Convert to fraction form
94,781.20/130,792.80 = 58,970.08/x - Step 3: Cross multiply
94,781.20x = 130,792.80 × 58,970.08 - Step 4: Simplify right side
94,781.20x = 7,712,861,879.42 - Step 5: Solve for x
x = 7,712,861,879.42/94,781.20 - Step 6: Final answer
x = 81,375.44
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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.