Finding the Fourth Proportional to 92,702.20, 127,931.56 and 52,421.99
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Solution
The fourth proportional to 92,702.20, 127,931.56 and 52,421.99 is: 72,343.77
Step by Step Solution
- Step 1: Write the proportion equation
92,702.20 : 127,931.56 = 52,421.99 : x - Step 2: Convert to fraction form
92,702.20/127,931.56 = 52,421.99/x - Step 3: Cross multiply
92,702.20x = 127,931.56 × 52,421.99 - Step 4: Simplify right side
92,702.20x = 6,706,426,696.89 - Step 5: Solve for x
x = 6,706,426,696.89/92,702.20 - Step 6: Final answer
x = 72,343.77
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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.