Finding the Fourth Proportional to 77,237.12, 115,857.71 and 24,646.55
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Solution
The fourth proportional to 77,237.12, 115,857.71 and 24,646.55 is: 36,970.47
Step by Step Solution
- Step 1: Write the proportion equation
77,237.12 : 115,857.71 = 24,646.55 : x - Step 2: Convert to fraction form
77,237.12/115,857.71 = 24,646.55/x - Step 3: Cross multiply
77,237.12x = 115,857.71 × 24,646.55 - Step 4: Simplify right side
77,237.12x = 2,855,492,842.40 - Step 5: Solve for x
x = 2,855,492,842.40/77,237.12 - Step 6: Final answer
x = 36,970.47
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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.