Home / 86,973.17-130,457.70-27,809.36

Finding the Fourth Proportional to 86,973.17, 130,457.70 and 27,809.36

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Solution

The fourth proportional to 86,973.17, 130,457.70 and 27,809.36 is: 41,713.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,973.17 : 130,457.70 = 27,809.36 : x
  2. Step 2: Convert to fraction form
    86,973.17/130,457.70 = 27,809.36/x
  3. Step 3: Cross multiply
    86,973.17x = 130,457.70 × 27,809.36
  4. Step 4: Simplify right side
    86,973.17x = 3,627,944,352.74
  5. Step 5: Solve for x
    x = 3,627,944,352.74/86,973.17
  6. Step 6: Final answer
    x = 41,713.37

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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.