Finding the Fourth Proportional to 77,405.16, 106,802.88 and 50,587.08
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Solution
The fourth proportional to 77,405.16, 106,802.88 and 50,587.08 is: 69,799.56
Step by Step Solution
- Step 1: Write the proportion equation
77,405.16 : 106,802.88 = 50,587.08 : x - Step 2: Convert to fraction form
77,405.16/106,802.88 = 50,587.08/x - Step 3: Cross multiply
77,405.16x = 106,802.88 × 50,587.08 - Step 4: Simplify right side
77,405.16x = 5,402,845,834.79 - Step 5: Solve for x
x = 5,402,845,834.79/77,405.16 - Step 6: Final answer
x = 69,799.56
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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.