Finding the Fourth Proportional to 93,417.12, 128,911.68 and 53,125.26
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Solution
The fourth proportional to 93,417.12, 128,911.68 and 53,125.26 is: 73,310.61
Step by Step Solution
- Step 1: Write the proportion equation
93,417.12 : 128,911.68 = 53,125.26 : x - Step 2: Convert to fraction form
93,417.12/128,911.68 = 53,125.26/x - Step 3: Cross multiply
93,417.12x = 128,911.68 × 53,125.26 - Step 4: Simplify right side
93,417.12x = 6,848,466,517.04 - Step 5: Solve for x
x = 6,848,466,517.04/93,417.12 - Step 6: Final answer
x = 73,310.61
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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.