Home / 86,210.31-129,317.64-23,881.35

Finding the Fourth Proportional to 86,210.31, 129,317.64 and 23,881.35

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Solution

The fourth proportional to 86,210.31, 129,317.64 and 23,881.35 is: 35,822.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,210.31 : 129,317.64 = 23,881.35 : x
  2. Step 2: Convert to fraction form
    86,210.31/129,317.64 = 23,881.35/x
  3. Step 3: Cross multiply
    86,210.31x = 129,317.64 × 23,881.35
  4. Step 4: Simplify right side
    86,210.31x = 3,088,279,822.01
  5. Step 5: Solve for x
    x = 3,088,279,822.01/86,210.31
  6. Step 6: Final answer
    x = 35,822.63

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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.