Finding the Fourth Proportional to 83,802.28, 115,533.96 and 56,898.08
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Solution
The fourth proportional to 83,802.28, 115,533.96 and 56,898.08 is: 78,442.50
Step by Step Solution
- Step 1: Write the proportion equation
83,802.28 : 115,533.96 = 56,898.08 : x - Step 2: Convert to fraction form
83,802.28/115,533.96 = 56,898.08/x - Step 3: Cross multiply
83,802.28x = 115,533.96 × 56,898.08 - Step 4: Simplify right side
83,802.28x = 6,573,660,498.80 - Step 5: Solve for x
x = 6,573,660,498.80/83,802.28 - Step 6: Final answer
x = 78,442.50
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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.