Finding the Fourth Proportional to 98,470.99, 135,890.36 and 56,028.61
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Solution
The fourth proportional to 98,470.99, 135,890.36 and 56,028.61 is: 77,319.71
Step by Step Solution
- Step 1: Write the proportion equation
98,470.99 : 135,890.36 = 56,028.61 : x - Step 2: Convert to fraction form
98,470.99/135,890.36 = 56,028.61/x - Step 3: Cross multiply
98,470.99x = 135,890.36 × 56,028.61 - Step 4: Simplify right side
98,470.99x = 7,613,747,983.20 - Step 5: Solve for x
x = 7,613,747,983.20/98,470.99 - Step 6: Final answer
x = 77,319.71
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.