Finding the Fourth Proportional to 88,261.95, 121,829.36 and 56,430.98
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Solution
The fourth proportional to 88,261.95, 121,829.36 and 56,430.98 is: 77,892.56
Step by Step Solution
- Step 1: Write the proportion equation
88,261.95 : 121,829.36 = 56,430.98 : x - Step 2: Convert to fraction form
88,261.95/121,829.36 = 56,430.98/x - Step 3: Cross multiply
88,261.95x = 121,829.36 × 56,430.98 - Step 4: Simplify right side
88,261.95x = 6,874,949,286.27 - Step 5: Solve for x
x = 6,874,949,286.27/88,261.95 - Step 6: Final answer
x = 77,892.56
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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.