Finding the Fourth Proportional to 70,987.13, 106,449.50 and 26,582.74
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Solution
The fourth proportional to 70,987.13, 106,449.50 and 26,582.74 is: 39,862.43
Step by Step Solution
- Step 1: Write the proportion equation
70,987.13 : 106,449.50 = 26,582.74 : x - Step 2: Convert to fraction form
70,987.13/106,449.50 = 26,582.74/x - Step 3: Cross multiply
70,987.13x = 106,449.50 × 26,582.74 - Step 4: Simplify right side
70,987.13x = 2,829,719,181.96 - Step 5: Solve for x
x = 2,829,719,181.96/70,987.13 - Step 6: Final answer
x = 39,862.43
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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.