Home / 88,007.59-121,418.58-57,809.26

Finding the Fourth Proportional to 88,007.59, 121,418.58 and 57,809.26

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Solution

The fourth proportional to 88,007.59, 121,418.58 and 57,809.26 is: 79,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,007.59 : 121,418.58 = 57,809.26 : x
  2. Step 2: Convert to fraction form
    88,007.59/121,418.58 = 57,809.26/x
  3. Step 3: Cross multiply
    88,007.59x = 121,418.58 × 57,809.26
  4. Step 4: Simplify right side
    88,007.59x = 7,019,118,260.05
  5. Step 5: Solve for x
    x = 7,019,118,260.05/88,007.59
  6. Step 6: Final answer
    x = 79,755.83

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1.5x scale

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.