Home / 90,935.69-125,497.55-55,127.21

Finding the Fourth Proportional to 90,935.69, 125,497.55 and 55,127.21

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Solution

The fourth proportional to 90,935.69, 125,497.55 and 55,127.21 is: 76,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,935.69 : 125,497.55 = 55,127.21 : x
  2. Step 2: Convert to fraction form
    90,935.69/125,497.55 = 55,127.21/x
  3. Step 3: Cross multiply
    90,935.69x = 125,497.55 × 55,127.21
  4. Step 4: Simplify right side
    90,935.69x = 6,918,329,303.67
  5. Step 5: Solve for x
    x = 6,918,329,303.67/90,935.69
  6. Step 6: Final answer
    x = 76,079.37

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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.