Finding the Fourth Proportional to 93,430.55, 128,935.05 and 50,989.08
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Solution
The fourth proportional to 93,430.55, 128,935.05 and 50,989.08 is: 70,365.42
Step by Step Solution
- Step 1: Write the proportion equation
93,430.55 : 128,935.05 = 50,989.08 : x - Step 2: Convert to fraction form
93,430.55/128,935.05 = 50,989.08/x - Step 3: Cross multiply
93,430.55x = 128,935.05 × 50,989.08 - Step 4: Simplify right side
93,430.55x = 6,574,279,579.25 - Step 5: Solve for x
x = 6,574,279,579.25/93,430.55 - Step 6: Final answer
x = 70,365.42
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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.