Finding the Fourth Proportional to 70,462.73, 105,730.55 and 31,052.99
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Solution
The fourth proportional to 70,462.73, 105,730.55 and 31,052.99 is: 46,595.55
Step by Step Solution
- Step 1: Write the proportion equation
70,462.73 : 105,730.55 = 31,052.99 : x - Step 2: Convert to fraction form
70,462.73/105,730.55 = 31,052.99/x - Step 3: Cross multiply
70,462.73x = 105,730.55 × 31,052.99 - Step 4: Simplify right side
70,462.73x = 3,283,249,711.84 - Step 5: Solve for x
x = 3,283,249,711.84/70,462.73 - Step 6: Final answer
x = 46,595.55
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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.