Home / 87,927.73-121,340.10-47,642.58

Finding the Fourth Proportional to 87,927.73, 121,340.10 and 47,642.58

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Solution

The fourth proportional to 87,927.73, 121,340.10 and 47,642.58 is: 65,746.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,927.73 : 121,340.10 = 47,642.58 : x
  2. Step 2: Convert to fraction form
    87,927.73/121,340.10 = 47,642.58/x
  3. Step 3: Cross multiply
    87,927.73x = 121,340.10 × 47,642.58
  4. Step 4: Simplify right side
    87,927.73x = 5,780,955,242.80
  5. Step 5: Solve for x
    x = 5,780,955,242.80/87,927.73
  6. Step 6: Final answer
    x = 65,746.67

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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.