Finding the Fourth Proportional to 66,970.08, 100,455.12 and 25,417.08
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Solution
The fourth proportional to 66,970.08, 100,455.12 and 25,417.08 is: 38,125.62
Step by Step Solution
- Step 1: Write the proportion equation
66,970.08 : 100,455.12 = 25,417.08 : x - Step 2: Convert to fraction form
66,970.08/100,455.12 = 25,417.08/x - Step 3: Cross multiply
66,970.08x = 100,455.12 × 25,417.08 - Step 4: Simplify right side
66,970.08x = 2,553,275,821.45 - Step 5: Solve for x
x = 2,553,275,821.45/66,970.08 - Step 6: Final answer
x = 38,125.62
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1.5x scale
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.