Finding the Fourth Proportional to 77,866.19, 107,457.59 and 43,875.08
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Solution
The fourth proportional to 77,866.19, 107,457.59 and 43,875.08 is: 60,548.88
Step by Step Solution
- Step 1: Write the proportion equation
77,866.19 : 107,457.59 = 43,875.08 : x - Step 2: Convert to fraction form
77,866.19/107,457.59 = 43,875.08/x - Step 3: Cross multiply
77,866.19x = 107,457.59 × 43,875.08 - Step 4: Simplify right side
77,866.19x = 4,714,710,407.13 - Step 5: Solve for x
x = 4,714,710,407.13/77,866.19 - Step 6: Final answer
x = 60,548.88
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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.