Finding the Fourth Proportional to 83,904.49, 115,788.19 and 46,178.74
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Solution
The fourth proportional to 83,904.49, 115,788.19 and 46,178.74 is: 63,726.66
Step by Step Solution
- Step 1: Write the proportion equation
83,904.49 : 115,788.19 = 46,178.74 : x - Step 2: Convert to fraction form
83,904.49/115,788.19 = 46,178.74/x - Step 3: Cross multiply
83,904.49x = 115,788.19 × 46,178.74 - Step 4: Simplify right side
83,904.49x = 5,346,952,721.08 - Step 5: Solve for x
x = 5,346,952,721.08/83,904.49 - Step 6: Final answer
x = 63,726.66
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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.