Finding the Fourth Proportional to 97,089.36, 134,024.61 and 65,276.70
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Solution
The fourth proportional to 97,089.36, 134,024.61 and 65,276.70 is: 90,109.61
Step by Step Solution
- Step 1: Write the proportion equation
97,089.36 : 134,024.61 = 65,276.70 : x - Step 2: Convert to fraction form
97,089.36/134,024.61 = 65,276.70/x - Step 3: Cross multiply
97,089.36x = 134,024.61 × 65,276.70 - Step 4: Simplify right side
97,089.36x = 8,748,684,259.59 - Step 5: Solve for x
x = 8,748,684,259.59/97,089.36 - Step 6: Final answer
x = 90,109.61
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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.