Finding the Fourth Proportional to 93,430.14, 128,931.80 and 50,988.98
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Solution
The fourth proportional to 93,430.14, 128,931.80 and 50,988.98 is: 70,363.80
Step by Step Solution
- Step 1: Write the proportion equation
93,430.14 : 128,931.80 = 50,988.98 : x - Step 2: Convert to fraction form
93,430.14/128,931.80 = 50,988.98/x - Step 3: Cross multiply
93,430.14x = 128,931.80 × 50,988.98 - Step 4: Simplify right side
93,430.14x = 6,574,100,071.96 - Step 5: Solve for x
x = 6,574,100,071.96/93,430.14 - Step 6: Final answer
x = 70,363.80
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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.