Finding the Fourth Proportional to 86,774.22, 130,012.74 and 47,358.99
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Solution
The fourth proportional to 86,774.22, 130,012.74 and 47,358.99 is: 70,957.39
Step by Step Solution
- Step 1: Write the proportion equation
86,774.22 : 130,012.74 = 47,358.99 : x - Step 2: Convert to fraction form
86,774.22/130,012.74 = 47,358.99/x - Step 3: Cross multiply
86,774.22x = 130,012.74 × 47,358.99 - Step 4: Simplify right side
86,774.22x = 6,157,272,053.53 - Step 5: Solve for x
x = 6,157,272,053.53/86,774.22 - Step 6: Final answer
x = 70,957.39
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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.