Finding the Fourth Proportional to 83,422.58, 115,030.91 and 53,159.96
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Solution
The fourth proportional to 83,422.58, 115,030.91 and 53,159.96 is: 73,301.95
Step by Step Solution
- Step 1: Write the proportion equation
83,422.58 : 115,030.91 = 53,159.96 : x - Step 2: Convert to fraction form
83,422.58/115,030.91 = 53,159.96/x - Step 3: Cross multiply
83,422.58x = 115,030.91 × 53,159.96 - Step 4: Simplify right side
83,422.58x = 6,115,037,733.41 - Step 5: Solve for x
x = 6,115,037,733.41/83,422.58 - Step 6: Final answer
x = 73,301.95
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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.