Finding the Fourth Proportional to 72,929.41, 100,641.99 and 40,663.65
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Solution
The fourth proportional to 72,929.41, 100,641.99 and 40,663.65 is: 56,115.50
Step by Step Solution
- Step 1: Write the proportion equation
72,929.41 : 100,641.99 = 40,663.65 : x - Step 2: Convert to fraction form
72,929.41/100,641.99 = 40,663.65/x - Step 3: Cross multiply
72,929.41x = 100,641.99 × 40,663.65 - Step 4: Simplify right side
72,929.41x = 4,092,470,656.66 - Step 5: Solve for x
x = 4,092,470,656.66/72,929.41 - Step 6: Final answer
x = 56,115.50
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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.