Finding the Fourth Proportional to 79,929.60, 110,263.68 and 51,659.52
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Solution
The fourth proportional to 79,929.60, 110,263.68 and 51,659.52 is: 71,264.82
Step by Step Solution
- Step 1: Write the proportion equation
79,929.60 : 110,263.68 = 51,659.52 : x - Step 2: Convert to fraction form
79,929.60/110,263.68 = 51,659.52/x - Step 3: Cross multiply
79,929.60x = 110,263.68 × 51,659.52 - Step 4: Simplify right side
79,929.60x = 5,696,168,782.23 - Step 5: Solve for x
x = 5,696,168,782.23/79,929.60 - Step 6: Final answer
x = 71,264.82
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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.