Finding the Fourth Proportional to 74,970.26, 103,461.35 and 40,978.00
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Solution
The fourth proportional to 74,970.26, 103,461.35 and 40,978.00 is: 56,550.95
Step by Step Solution
- Step 1: Write the proportion equation
74,970.26 : 103,461.35 = 40,978.00 : x - Step 2: Convert to fraction form
74,970.26/103,461.35 = 40,978.00/x - Step 3: Cross multiply
74,970.26x = 103,461.35 × 40,978.00 - Step 4: Simplify right side
74,970.26x = 4,239,639,355.24 - Step 5: Solve for x
x = 4,239,639,355.24/74,970.26 - Step 6: Final answer
x = 56,550.95
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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.