Finding the Fourth Proportional to 86,619.84, 130,077.99 and 53,536.20
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Solution
The fourth proportional to 86,619.84, 130,077.99 and 53,536.20 is: 80,395.91
Step by Step Solution
- Step 1: Write the proportion equation
86,619.84 : 130,077.99 = 53,536.20 : x - Step 2: Convert to fraction form
86,619.84/130,077.99 = 53,536.20/x - Step 3: Cross multiply
86,619.84x = 130,077.99 × 53,536.20 - Step 4: Simplify right side
86,619.84x = 6,963,881,288.24 - Step 5: Solve for x
x = 6,963,881,288.24/86,619.84 - Step 6: Final answer
x = 80,395.91
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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.