Finding the Fourth Proportional to 86,036, 129,058.86 and 30,632
Calculator
Solution
The fourth proportional to 86,036, 129,058.86 and 30,632 is: 45,949.73
Step by Step Solution
- Step 1: Write the proportion equation
86,036 : 129,058.86 = 30,632 : x - Step 2: Convert to fraction form
86,036/129,058.86 = 30,632/x - Step 3: Cross multiply
86,036x = 129,058.86 × 30,632 - Step 4: Simplify right side
86,036x = 3,953,330,999.52 - Step 5: Solve for x
x = 3,953,330,999.52/86,036 - Step 6: Final answer
x = 45,949.73
Related Problems
Find fourth proportional to 43,018, 64,529.43 and 15,316
Half scale
Find fourth proportional to 172,072, 258,117.72 and 61,264
Double scale
Find fourth proportional to 86,037, 129,060.36 and 30,633
Similar ratio
Find fourth proportional to 129,054, 193,588.29 and 45,948
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.