Finding the Fourth Proportional to 90,267.18, 124,567.20 and 49,980.06
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Solution
The fourth proportional to 90,267.18, 124,567.20 and 49,980.06 is: 68,971.65
Step by Step Solution
- Step 1: Write the proportion equation
90,267.18 : 124,567.20 = 49,980.06 : x - Step 2: Convert to fraction form
90,267.18/124,567.20 = 49,980.06/x - Step 3: Cross multiply
90,267.18x = 124,567.20 × 49,980.06 - Step 4: Simplify right side
90,267.18x = 6,225,876,130.03 - Step 5: Solve for x
x = 6,225,876,130.03/90,267.18 - Step 6: Final answer
x = 68,971.65
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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.