Finding the Fourth Proportional to 77,710.24, 116,368.53 and 48,185.74
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Solution
The fourth proportional to 77,710.24, 116,368.53 and 48,185.74 is: 72,156.56
Step by Step Solution
- Step 1: Write the proportion equation
77,710.24 : 116,368.53 = 48,185.74 : x - Step 2: Convert to fraction form
77,710.24/116,368.53 = 48,185.74/x - Step 3: Cross multiply
77,710.24x = 116,368.53 × 48,185.74 - Step 4: Simplify right side
77,710.24x = 5,607,303,730.76 - Step 5: Solve for x
x = 5,607,303,730.76/77,710.24 - Step 6: Final answer
x = 72,156.56
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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.