Finding the Fourth Proportional to 83,718.24, 115,497.60 and 53,495.76
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Solution
The fourth proportional to 83,718.24, 115,497.60 and 53,495.76 is: 73,802.70
Step by Step Solution
- Step 1: Write the proportion equation
83,718.24 : 115,497.60 = 53,495.76 : x - Step 2: Convert to fraction form
83,718.24/115,497.60 = 53,495.76/x - Step 3: Cross multiply
83,718.24x = 115,497.60 × 53,495.76 - Step 4: Simplify right side
83,718.24x = 6,178,631,890.18 - Step 5: Solve for x
x = 6,178,631,890.18/83,718.24 - Step 6: Final answer
x = 73,802.70
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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.