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Finding the Fourth Proportional to 86,044.71, 118,708.54 and 63,437.45

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Solution

The fourth proportional to 86,044.71, 118,708.54 and 63,437.45 is: 87,519.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,044.71 : 118,708.54 = 63,437.45 : x
  2. Step 2: Convert to fraction form
    86,044.71/118,708.54 = 63,437.45/x
  3. Step 3: Cross multiply
    86,044.71x = 118,708.54 × 63,437.45
  4. Step 4: Simplify right side
    86,044.71x = 7,530,566,318.69
  5. Step 5: Solve for x
    x = 7,530,566,318.69/86,044.71
  6. Step 6: Final answer
    x = 87,519.22

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1.5x scale

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.