Finding the Fourth Proportional to 86,687.13, 130,030.73 and 56,726.62
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Solution
The fourth proportional to 86,687.13, 130,030.73 and 56,726.62 is: 85,089.95
Step by Step Solution
- Step 1: Write the proportion equation
86,687.13 : 130,030.73 = 56,726.62 : x - Step 2: Convert to fraction form
86,687.13/130,030.73 = 56,726.62/x - Step 3: Cross multiply
86,687.13x = 130,030.73 × 56,726.62 - Step 4: Simplify right side
86,687.13x = 7,376,203,200.32 - Step 5: Solve for x
x = 7,376,203,200.32/86,687.13 - Step 6: Final answer
x = 85,089.95
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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.