Finding the Fourth Proportional to 92,386.70, 138,515.54 and 47,320.53
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Solution
The fourth proportional to 92,386.70, 138,515.54 and 47,320.53 is: 70,947.75
Step by Step Solution
- Step 1: Write the proportion equation
92,386.70 : 138,515.54 = 47,320.53 : x - Step 2: Convert to fraction form
92,386.70/138,515.54 = 47,320.53/x - Step 3: Cross multiply
92,386.70x = 138,515.54 × 47,320.53 - Step 4: Simplify right side
92,386.70x = 6,554,628,798.84 - Step 5: Solve for x
x = 6,554,628,798.84/92,386.70 - Step 6: Final answer
x = 70,947.75
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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.