Finding the Fourth Proportional to 70,953.68, 106,430.52 and 18,368.48
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Solution
The fourth proportional to 70,953.68, 106,430.52 and 18,368.48 is: 27,552.72
Step by Step Solution
- Step 1: Write the proportion equation
70,953.68 : 106,430.52 = 18,368.48 : x - Step 2: Convert to fraction form
70,953.68/106,430.52 = 18,368.48/x - Step 3: Cross multiply
70,953.68x = 106,430.52 × 18,368.48 - Step 4: Simplify right side
70,953.68x = 1,954,966,878.01 - Step 5: Solve for x
x = 1,954,966,878.01/70,953.68 - Step 6: Final answer
x = 27,552.72
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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.