Home / 87,924.63-121,291.75-57,705.76

Finding the Fourth Proportional to 87,924.63, 121,291.75 and 57,705.76

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Solution

The fourth proportional to 87,924.63, 121,291.75 and 57,705.76 is: 79,604.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,924.63 : 121,291.75 = 57,705.76 : x
  2. Step 2: Convert to fraction form
    87,924.63/121,291.75 = 57,705.76/x
  3. Step 3: Cross multiply
    87,924.63x = 121,291.75 × 57,705.76
  4. Step 4: Simplify right side
    87,924.63x = 6,999,232,615.48
  5. Step 5: Solve for x
    x = 6,999,232,615.48/87,924.63
  6. Step 6: Final answer
    x = 79,604.91

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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.