Finding the Fourth Proportional to 70,952.16, 106,307.80 and 42,813.08
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Solution
The fourth proportional to 70,952.16, 106,307.80 and 42,813.08 is: 64,146.95
Step by Step Solution
- Step 1: Write the proportion equation
70,952.16 : 106,307.80 = 42,813.08 : x - Step 2: Convert to fraction form
70,952.16/106,307.80 = 42,813.08/x - Step 3: Cross multiply
70,952.16x = 106,307.80 × 42,813.08 - Step 4: Simplify right side
70,952.16x = 4,551,364,344.89 - Step 5: Solve for x
x = 4,551,364,344.89/70,952.16 - Step 6: Final answer
x = 64,146.95
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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.