Finding the Fourth Proportional to 86,798.84, 130,253.62 and 36,878.95
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Solution
The fourth proportional to 86,798.84, 130,253.62 and 36,878.95 is: 55,341.95
Step by Step Solution
- Step 1: Write the proportion equation
86,798.84 : 130,253.62 = 36,878.95 : x - Step 2: Convert to fraction form
86,798.84/130,253.62 = 36,878.95/x - Step 3: Cross multiply
86,798.84x = 130,253.62 × 36,878.95 - Step 4: Simplify right side
86,798.84x = 4,803,617,245.40 - Step 5: Solve for x
x = 4,803,617,245.40/86,798.84 - Step 6: Final answer
x = 55,341.95
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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.