Finding the Fourth Proportional to 93,981.48, 129,697.50 and 53,686.68
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Solution
The fourth proportional to 93,981.48, 129,697.50 and 53,686.68 is: 74,089.37
Step by Step Solution
- Step 1: Write the proportion equation
93,981.48 : 129,697.50 = 53,686.68 : x - Step 2: Convert to fraction form
93,981.48/129,697.50 = 53,686.68/x - Step 3: Cross multiply
93,981.48x = 129,697.50 × 53,686.68 - Step 4: Simplify right side
93,981.48x = 6,963,028,179.30 - Step 5: Solve for x
x = 6,963,028,179.30/93,981.48 - Step 6: Final answer
x = 74,089.37
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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.