Finding the Fourth Proportional to 98,925.76, 136,564.88 and 56,476.08
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Solution
The fourth proportional to 98,925.76, 136,564.88 and 56,476.08 is: 77,964.01
Step by Step Solution
- Step 1: Write the proportion equation
98,925.76 : 136,564.88 = 56,476.08 : x - Step 2: Convert to fraction form
98,925.76/136,564.88 = 56,476.08/x - Step 3: Cross multiply
98,925.76x = 136,564.88 × 56,476.08 - Step 4: Simplify right side
98,925.76x = 7,712,649,088.07 - Step 5: Solve for x
x = 7,712,649,088.07/98,925.76 - Step 6: Final answer
x = 77,964.01
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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.