Home / 81,427.09-112,377.63-45,623.47

Finding the Fourth Proportional to 81,427.09, 112,377.63 and 45,623.47

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Solution

The fourth proportional to 81,427.09, 112,377.63 and 45,623.47 is: 62,965.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,427.09 : 112,377.63 = 45,623.47 : x
  2. Step 2: Convert to fraction form
    81,427.09/112,377.63 = 45,623.47/x
  3. Step 3: Cross multiply
    81,427.09x = 112,377.63 × 45,623.47
  4. Step 4: Simplify right side
    81,427.09x = 5,127,057,430.98
  5. Step 5: Solve for x
    x = 5,127,057,430.98/81,427.09
  6. Step 6: Final answer
    x = 62,965.01

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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.