Finding the Fourth Proportional to 85,895.29, 118,521.84 and 55,721.98
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Solution
The fourth proportional to 85,895.29, 118,521.84 and 55,721.98 is: 76,887.47
Step by Step Solution
- Step 1: Write the proportion equation
85,895.29 : 118,521.84 = 55,721.98 : x - Step 2: Convert to fraction form
85,895.29/118,521.84 = 55,721.98/x - Step 3: Cross multiply
85,895.29x = 118,521.84 × 55,721.98 - Step 4: Simplify right side
85,895.29x = 6,604,271,598.04 - Step 5: Solve for x
x = 6,604,271,598.04/85,895.29 - Step 6: Final answer
x = 76,887.47
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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.