Finding the Fourth Proportional to 70,898.40, 106,337.52 and 28,203.84
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Solution
The fourth proportional to 70,898.40, 106,337.52 and 28,203.84 is: 42,301.75
Step by Step Solution
- Step 1: Write the proportion equation
70,898.40 : 106,337.52 = 28,203.84 : x - Step 2: Convert to fraction form
70,898.40/106,337.52 = 28,203.84/x - Step 3: Cross multiply
70,898.40x = 106,337.52 × 28,203.84 - Step 4: Simplify right side
70,898.40x = 2,999,126,400.08 - Step 5: Solve for x
x = 2,999,126,400.08/70,898.40 - Step 6: Final answer
x = 42,301.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.