Finding the Fourth Proportional to 88,726.10, 122,442.12 and 56,894.99
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Solution
The fourth proportional to 88,726.10, 122,442.12 and 56,894.99 is: 78,515.15
Step by Step Solution
- Step 1: Write the proportion equation
88,726.10 : 122,442.12 = 56,894.99 : x - Step 2: Convert to fraction form
88,726.10/122,442.12 = 56,894.99/x - Step 3: Cross multiply
88,726.10x = 122,442.12 × 56,894.99 - Step 4: Simplify right side
88,726.10x = 6,966,342,580.77 - Step 5: Solve for x
x = 6,966,342,580.77/88,726.10 - Step 6: Final answer
x = 78,515.15
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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.