Home / 87,795.46-121,136.64-53,339.50

Finding the Fourth Proportional to 87,795.46, 121,136.64 and 53,339.50

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Solution

The fourth proportional to 87,795.46, 121,136.64 and 53,339.50 is: 73,595.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,795.46 : 121,136.64 = 53,339.50 : x
  2. Step 2: Convert to fraction form
    87,795.46/121,136.64 = 53,339.50/x
  3. Step 3: Cross multiply
    87,795.46x = 121,136.64 × 53,339.50
  4. Step 4: Simplify right side
    87,795.46x = 6,461,367,809.28
  5. Step 5: Solve for x
    x = 6,461,367,809.28/87,795.46
  6. Step 6: Final answer
    x = 73,595.69

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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.