Home / 90,659.10-125,127.45-57,932.58

Finding the Fourth Proportional to 90,659.10, 125,127.45 and 57,932.58

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Solution

The fourth proportional to 90,659.10, 125,127.45 and 57,932.58 is: 79,958.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,659.10 : 125,127.45 = 57,932.58 : x
  2. Step 2: Convert to fraction form
    90,659.10/125,127.45 = 57,932.58/x
  3. Step 3: Cross multiply
    90,659.10x = 125,127.45 × 57,932.58
  4. Step 4: Simplify right side
    90,659.10x = 7,248,956,007.32
  5. Step 5: Solve for x
    x = 7,248,956,007.32/90,659.10
  6. Step 6: Final answer
    x = 79,958.39

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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.