Home / 81,501.54-122,241.93-31,547.46

Finding the Fourth Proportional to 81,501.54, 122,241.93 and 31,547.46

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Solution

The fourth proportional to 81,501.54, 122,241.93 and 31,547.46 is: 47,317.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,501.54 : 122,241.93 = 31,547.46 : x
  2. Step 2: Convert to fraction form
    81,501.54/122,241.93 = 31,547.46/x
  3. Step 3: Cross multiply
    81,501.54x = 122,241.93 × 31,547.46
  4. Step 4: Simplify right side
    81,501.54x = 3,856,422,397.00
  5. Step 5: Solve for x
    x = 3,856,422,397.00/81,501.54
  6. Step 6: Final answer
    x = 47,317.17

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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.