Finding the Fourth Proportional to 93,406.43, 128,903.72 and 53,125.99
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Solution
The fourth proportional to 93,406.43, 128,903.72 and 53,125.99 is: 73,315.48
Step by Step Solution
- Step 1: Write the proportion equation
93,406.43 : 128,903.72 = 53,125.99 : x - Step 2: Convert to fraction form
93,406.43/128,903.72 = 53,125.99/x - Step 3: Cross multiply
93,406.43x = 128,903.72 × 53,125.99 - Step 4: Simplify right side
93,406.43x = 6,848,137,151.79 - Step 5: Solve for x
x = 6,848,137,151.79/93,406.43 - Step 6: Final answer
x = 73,315.48
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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.