Finding the Fourth Proportional to 98,783.24, 136,313.14 and 56,339.08
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Solution
The fourth proportional to 98,783.24, 136,313.14 and 56,339.08 is: 77,743.52
Step by Step Solution
- Step 1: Write the proportion equation
98,783.24 : 136,313.14 = 56,339.08 : x - Step 2: Convert to fraction form
98,783.24/136,313.14 = 56,339.08/x - Step 3: Cross multiply
98,783.24x = 136,313.14 × 56,339.08 - Step 4: Simplify right side
98,783.24x = 7,679,756,899.51 - Step 5: Solve for x
x = 7,679,756,899.51/98,783.24 - Step 6: Final answer
x = 77,743.52
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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.