Home / 81,536.14-112,547.51-51,372.01

Finding the Fourth Proportional to 81,536.14, 112,547.51 and 51,372.01

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Solution

The fourth proportional to 81,536.14, 112,547.51 and 51,372.01 is: 70,910.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,536.14 : 112,547.51 = 51,372.01 : x
  2. Step 2: Convert to fraction form
    81,536.14/112,547.51 = 51,372.01/x
  3. Step 3: Cross multiply
    81,536.14x = 112,547.51 × 51,372.01
  4. Step 4: Simplify right side
    81,536.14x = 5,781,791,809.20
  5. Step 5: Solve for x
    x = 5,781,791,809.20/81,536.14
  6. Step 6: Final answer
    x = 70,910.79

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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.