Finding the Fourth Proportional to 86,979.25, 130,490.75 and 24,649.75
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Solution
The fourth proportional to 86,979.25, 130,490.75 and 24,649.75 is: 36,980.82
Step by Step Solution
- Step 1: Write the proportion equation
86,979.25 : 130,490.75 = 24,649.75 : x - Step 2: Convert to fraction form
86,979.25/130,490.75 = 24,649.75/x - Step 3: Cross multiply
86,979.25x = 130,490.75 × 24,649.75 - Step 4: Simplify right side
86,979.25x = 3,216,564,364.81 - Step 5: Solve for x
x = 3,216,564,364.81/86,979.25 - Step 6: Final answer
x = 36,980.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.