Finding the Fourth Proportional to 74,876.68, 112,315.20 and 19,472.68
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Solution
The fourth proportional to 74,876.68, 112,315.20 and 19,472.68 is: 29,209.07
Step by Step Solution
- Step 1: Write the proportion equation
74,876.68 : 112,315.20 = 19,472.68 : x - Step 2: Convert to fraction form
74,876.68/112,315.20 = 19,472.68/x - Step 3: Cross multiply
74,876.68x = 112,315.20 × 19,472.68 - Step 4: Simplify right side
74,876.68x = 2,187,077,948.74 - Step 5: Solve for x
x = 2,187,077,948.74/74,876.68 - Step 6: Final answer
x = 29,209.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.