Finding the Fourth Proportional to 70,802.07, 106,202.61 and 28,681.53
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Solution
The fourth proportional to 70,802.07, 106,202.61 and 28,681.53 is: 43,022.09
Step by Step Solution
- Step 1: Write the proportion equation
70,802.07 : 106,202.61 = 28,681.53 : x - Step 2: Convert to fraction form
70,802.07/106,202.61 = 28,681.53/x - Step 3: Cross multiply
70,802.07x = 106,202.61 × 28,681.53 - Step 4: Simplify right side
70,802.07x = 3,046,053,344.79 - Step 5: Solve for x
x = 3,046,053,344.79/70,802.07 - Step 6: Final answer
x = 43,022.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.