Finding the Fourth Proportional to 75,417.36, 103,976.91 and 62,681.46
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Solution
The fourth proportional to 75,417.36, 103,976.91 and 62,681.46 is: 86,418.09
Step by Step Solution
- Step 1: Write the proportion equation
75,417.36 : 103,976.91 = 62,681.46 : x - Step 2: Convert to fraction form
75,417.36/103,976.91 = 62,681.46/x - Step 3: Cross multiply
75,417.36x = 103,976.91 × 62,681.46 - Step 4: Simplify right side
75,417.36x = 6,517,424,525.09 - Step 5: Solve for x
x = 6,517,424,525.09/75,417.36 - Step 6: Final answer
x = 86,418.09
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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.