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Finding the Fourth Proportional to 77,729.58, 116,594.37 and 21,569.71

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Solution

The fourth proportional to 77,729.58, 116,594.37 and 21,569.71 is: 32,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,729.58 : 116,594.37 = 21,569.71 : x
  2. Step 2: Convert to fraction form
    77,729.58/116,594.37 = 21,569.71/x
  3. Step 3: Cross multiply
    77,729.58x = 116,594.37 × 21,569.71
  4. Step 4: Simplify right side
    77,729.58x = 2,514,906,111.64
  5. Step 5: Solve for x
    x = 2,514,906,111.64/77,729.58
  6. Step 6: Final answer
    x = 32,354.56

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1.5x scale

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.