Home / 86,335.48-119,134.38-63,686.71

Finding the Fourth Proportional to 86,335.48, 119,134.38 and 63,686.71

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Solution

The fourth proportional to 86,335.48, 119,134.38 and 63,686.71 is: 87,881.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,335.48 : 119,134.38 = 63,686.71 : x
  2. Step 2: Convert to fraction form
    86,335.48/119,134.38 = 63,686.71/x
  3. Step 3: Cross multiply
    86,335.48x = 119,134.38 × 63,686.71
  4. Step 4: Simplify right side
    86,335.48x = 7,587,276,710.09
  5. Step 5: Solve for x
    x = 7,587,276,710.09/86,335.48
  6. Step 6: Final answer
    x = 87,881.33

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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.