Finding the Fourth Proportional to 79,567.12, 119,177.88 and 77,355.28
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Solution
The fourth proportional to 79,567.12, 119,177.88 and 77,355.28 is: 115,864.92
Step by Step Solution
- Step 1: Write the proportion equation
79,567.12 : 119,177.88 = 77,355.28 : x - Step 2: Convert to fraction form
79,567.12/119,177.88 = 77,355.28/x - Step 3: Cross multiply
79,567.12x = 119,177.88 × 77,355.28 - Step 4: Simplify right side
79,567.12x = 9,219,038,277.21 - Step 5: Solve for x
x = 9,219,038,277.21/79,567.12 - Step 6: Final answer
x = 115,864.92
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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.