Finding the Fourth Proportional to 97,867.13, 135,056.64 and 53,155.13
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Solution
The fourth proportional to 97,867.13, 135,056.64 and 53,155.13 is: 73,354.08
Step by Step Solution
- Step 1: Write the proportion equation
97,867.13 : 135,056.64 = 53,155.13 : x - Step 2: Convert to fraction form
97,867.13/135,056.64 = 53,155.13/x - Step 3: Cross multiply
97,867.13x = 135,056.64 × 53,155.13 - Step 4: Simplify right side
97,867.13x = 7,178,952,581.28 - Step 5: Solve for x
x = 7,178,952,581.28/97,867.13 - Step 6: Final answer
x = 73,354.08
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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.