Home / 86,354.28-129,422.56-46,273.86

Finding the Fourth Proportional to 86,354.28, 129,422.56 and 46,273.86

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Solution

The fourth proportional to 86,354.28, 129,422.56 and 46,273.86 is: 69,352.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,354.28 : 129,422.56 = 46,273.86 : x
  2. Step 2: Convert to fraction form
    86,354.28/129,422.56 = 46,273.86/x
  3. Step 3: Cross multiply
    86,354.28x = 129,422.56 × 46,273.86
  4. Step 4: Simplify right side
    86,354.28x = 5,988,881,422.28
  5. Step 5: Solve for x
    x = 5,988,881,422.28/86,354.28
  6. Step 6: Final answer
    x = 69,352.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.