Finding the Fourth Proportional to 93,830.86, 129,454.23 and 53,515.54
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Solution
The fourth proportional to 93,830.86, 129,454.23 and 53,515.54 is: 73,832.99
Step by Step Solution
- Step 1: Write the proportion equation
93,830.86 : 129,454.23 = 53,515.54 : x - Step 2: Convert to fraction form
93,830.86/129,454.23 = 53,515.54/x - Step 3: Cross multiply
93,830.86x = 129,454.23 × 53,515.54 - Step 4: Simplify right side
93,830.86x = 6,927,813,023.73 - Step 5: Solve for x
x = 6,927,813,023.73/93,830.86 - Step 6: Final answer
x = 73,832.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.