Home / 87,795.09-121,124.61-57,597.21

Finding the Fourth Proportional to 87,795.09, 121,124.61 and 57,597.21

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Solution

The fourth proportional to 87,795.09, 121,124.61 and 57,597.21 is: 79,462.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,795.09 : 121,124.61 = 57,597.21 : x
  2. Step 2: Convert to fraction form
    87,795.09/121,124.61 = 57,597.21/x
  3. Step 3: Cross multiply
    87,795.09x = 121,124.61 × 57,597.21
  4. Step 4: Simplify right side
    87,795.09x = 6,976,439,598.34
  5. Step 5: Solve for x
    x = 6,976,439,598.34/87,795.09
  6. Step 6: Final answer
    x = 79,462.75

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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.