Finding the Fourth Proportional to 77,584.55, 107,071.26 and 58,430.53
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Solution
The fourth proportional to 77,584.55, 107,071.26 and 58,430.53 is: 80,637.59
Step by Step Solution
- Step 1: Write the proportion equation
77,584.55 : 107,071.26 = 58,430.53 : x - Step 2: Convert to fraction form
77,584.55/107,071.26 = 58,430.53/x - Step 3: Cross multiply
77,584.55x = 107,071.26 × 58,430.53 - Step 4: Simplify right side
77,584.55x = 6,256,230,384.29 - Step 5: Solve for x
x = 6,256,230,384.29/77,584.55 - Step 6: Final answer
x = 80,637.59
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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.