Finding the Fourth Proportional to 98,973.84, 136,591.56 and 56,545.68
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Solution
The fourth proportional to 98,973.84, 136,591.56 and 56,545.68 is: 78,037.42
Step by Step Solution
- Step 1: Write the proportion equation
98,973.84 : 136,591.56 = 56,545.68 : x - Step 2: Convert to fraction form
98,973.84/136,591.56 = 56,545.68/x - Step 3: Cross multiply
98,973.84x = 136,591.56 × 56,545.68 - Step 4: Simplify right side
98,973.84x = 7,723,662,642.46 - Step 5: Solve for x
x = 7,723,662,642.46/98,973.84 - Step 6: Final answer
x = 78,037.42
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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.