Home / 74,828.36-111,695.06-65,971.28

Finding the Fourth Proportional to 74,828.36, 111,695.06 and 65,971.28

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Solution

The fourth proportional to 74,828.36, 111,695.06 and 65,971.28 is: 98,474.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,828.36 : 111,695.06 = 65,971.28 : x
  2. Step 2: Convert to fraction form
    74,828.36/111,695.06 = 65,971.28/x
  3. Step 3: Cross multiply
    74,828.36x = 111,695.06 × 65,971.28
  4. Step 4: Simplify right side
    74,828.36x = 7,368,666,077.88
  5. Step 5: Solve for x
    x = 7,368,666,077.88/74,828.36
  6. Step 6: Final answer
    x = 98,474.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.