Finding the Fourth Proportional to 93,798.56, 129,430.44 and 74,726.84
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Solution
The fourth proportional to 93,798.56, 129,430.44 and 74,726.84 is: 103,113.82
Step by Step Solution
- Step 1: Write the proportion equation
93,798.56 : 129,430.44 = 74,726.84 : x - Step 2: Convert to fraction form
93,798.56/129,430.44 = 74,726.84/x - Step 3: Cross multiply
93,798.56x = 129,430.44 × 74,726.84 - Step 4: Simplify right side
93,798.56x = 9,671,927,781.01 - Step 5: Solve for x
x = 9,671,927,781.01/93,798.56 - Step 6: Final answer
x = 103,113.82
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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.