Finding the Fourth Proportional to 83,987.36, 115,904.40 and 46,263.68
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Solution
The fourth proportional to 83,987.36, 115,904.40 and 46,263.68 is: 63,844.89
Step by Step Solution
- Step 1: Write the proportion equation
83,987.36 : 115,904.40 = 46,263.68 : x - Step 2: Convert to fraction form
83,987.36/115,904.40 = 46,263.68/x - Step 3: Cross multiply
83,987.36x = 115,904.40 × 46,263.68 - Step 4: Simplify right side
83,987.36x = 5,362,164,072.19 - Step 5: Solve for x
x = 5,362,164,072.19/83,987.36 - Step 6: Final answer
x = 63,844.89
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1.5x scale
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.