Finding the Fourth Proportional to 77,221.08, 115,726.86 and 32,792.13
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Solution
The fourth proportional to 77,221.08, 115,726.86 and 32,792.13 is: 49,143.71
Step by Step Solution
- Step 1: Write the proportion equation
77,221.08 : 115,726.86 = 32,792.13 : x - Step 2: Convert to fraction form
77,221.08/115,726.86 = 32,792.13/x - Step 3: Cross multiply
77,221.08x = 115,726.86 × 32,792.13 - Step 4: Simplify right side
77,221.08x = 3,794,930,237.61 - Step 5: Solve for x
x = 3,794,930,237.61/77,221.08 - Step 6: Final answer
x = 49,143.71
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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.