Finding the Fourth Proportional to 93,423.24, 128,926.92 and 53,142.84
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Solution
The fourth proportional to 93,423.24, 128,926.92 and 53,142.84 is: 73,338.74
Step by Step Solution
- Step 1: Write the proportion equation
93,423.24 : 128,926.92 = 53,142.84 : x - Step 2: Convert to fraction form
93,423.24/128,926.92 = 53,142.84/x - Step 3: Cross multiply
93,423.24x = 128,926.92 × 53,142.84 - Step 4: Simplify right side
93,423.24x = 6,851,542,681.25 - Step 5: Solve for x
x = 6,851,542,681.25/93,423.24 - Step 6: Final answer
x = 73,338.74
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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.