Finding the Fourth Proportional to 96,987.71, 133,822.97 and 56,693.68
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Solution
The fourth proportional to 96,987.71, 133,822.97 and 56,693.68 is: 78,225.55
Step by Step Solution
- Step 1: Write the proportion equation
96,987.71 : 133,822.97 = 56,693.68 : x - Step 2: Convert to fraction form
96,987.71/133,822.97 = 56,693.68/x - Step 3: Cross multiply
96,987.71x = 133,822.97 × 56,693.68 - Step 4: Simplify right side
96,987.71x = 7,586,916,637.83 - Step 5: Solve for x
x = 7,586,916,637.83/96,987.71 - Step 6: Final answer
x = 78,225.55
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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.