Finding the Fourth Proportional to 77,140.24, 106,555.16 and 59,204.41
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Solution
The fourth proportional to 77,140.24, 106,555.16 and 59,204.41 is: 81,780.09
Step by Step Solution
- Step 1: Write the proportion equation
77,140.24 : 106,555.16 = 59,204.41 : x - Step 2: Convert to fraction form
77,140.24/106,555.16 = 59,204.41/x - Step 3: Cross multiply
77,140.24x = 106,555.16 × 59,204.41 - Step 4: Simplify right side
77,140.24x = 6,308,535,261.88 - Step 5: Solve for x
x = 6,308,535,261.88/77,140.24 - Step 6: Final answer
x = 81,780.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.