Finding the Fourth Proportional to 91,303.70, 125,955.48 and 57,295.28
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Solution
The fourth proportional to 91,303.70, 125,955.48 and 57,295.28 is: 79,040.11
Step by Step Solution
- Step 1: Write the proportion equation
91,303.70 : 125,955.48 = 57,295.28 : x - Step 2: Convert to fraction form
91,303.70/125,955.48 = 57,295.28/x - Step 3: Cross multiply
91,303.70x = 125,955.48 × 57,295.28 - Step 4: Simplify right side
91,303.70x = 7,216,654,494.13 - Step 5: Solve for x
x = 7,216,654,494.13/91,303.70 - Step 6: Final answer
x = 79,040.11
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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.