Home / 82,720.36-114,143.28-46,897.28

Finding the Fourth Proportional to 82,720.36, 114,143.28 and 46,897.28

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Solution

The fourth proportional to 82,720.36, 114,143.28 and 46,897.28 is: 64,712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,720.36 : 114,143.28 = 46,897.28 : x
  2. Step 2: Convert to fraction form
    82,720.36/114,143.28 = 46,897.28/x
  3. Step 3: Cross multiply
    82,720.36x = 114,143.28 × 46,897.28
  4. Step 4: Simplify right side
    82,720.36x = 5,353,009,362.28
  5. Step 5: Solve for x
    x = 5,353,009,362.28/82,720.36
  6. Step 6: Final answer
    x = 64,712.11

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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.