Finding the Fourth Proportional to 84,681.42, 116,833.76 and 48,866.74
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Solution
The fourth proportional to 84,681.42, 116,833.76 and 48,866.74 is: 67,420.75
Step by Step Solution
- Step 1: Write the proportion equation
84,681.42 : 116,833.76 = 48,866.74 : x - Step 2: Convert to fraction form
84,681.42/116,833.76 = 48,866.74/x - Step 3: Cross multiply
84,681.42x = 116,833.76 × 48,866.74 - Step 4: Simplify right side
84,681.42x = 5,709,284,973.14 - Step 5: Solve for x
x = 5,709,284,973.14/84,681.42 - Step 6: Final answer
x = 67,420.75
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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.