Finding the Fourth Proportional to 93,490.13, 128,950.90 and 63,262.14
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Solution
The fourth proportional to 93,490.13, 128,950.90 and 63,262.14 is: 87,257.45
Step by Step Solution
- Step 1: Write the proportion equation
93,490.13 : 128,950.90 = 63,262.14 : x - Step 2: Convert to fraction form
93,490.13/128,950.90 = 63,262.14/x - Step 3: Cross multiply
93,490.13x = 128,950.90 × 63,262.14 - Step 4: Simplify right side
93,490.13x = 8,157,709,730.77 - Step 5: Solve for x
x = 8,157,709,730.77/93,490.13 - Step 6: Final answer
x = 87,257.45
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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.