Finding the Fourth Proportional to 99,248.99, 136,973.58 and 58,971.74
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Solution
The fourth proportional to 99,248.99, 136,973.58 and 58,971.74 is: 81,386.92
Step by Step Solution
- Step 1: Write the proportion equation
99,248.99 : 136,973.58 = 58,971.74 : x - Step 2: Convert to fraction form
99,248.99/136,973.58 = 58,971.74/x - Step 3: Cross multiply
99,248.99x = 136,973.58 × 58,971.74 - Step 4: Simplify right side
99,248.99x = 8,077,569,661.76 - Step 5: Solve for x
x = 8,077,569,661.76/99,248.99 - Step 6: Final answer
x = 81,386.92
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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.