Home / 90,859.20-125,332.54-59,049.28

Finding the Fourth Proportional to 90,859.20, 125,332.54 and 59,049.28

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Solution

The fourth proportional to 90,859.20, 125,332.54 and 59,049.28 is: 81,453.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,859.20 : 125,332.54 = 59,049.28 : x
  2. Step 2: Convert to fraction form
    90,859.20/125,332.54 = 59,049.28/x
  3. Step 3: Cross multiply
    90,859.20x = 125,332.54 × 59,049.28
  4. Step 4: Simplify right side
    90,859.20x = 7,400,796,247.57
  5. Step 5: Solve for x
    x = 7,400,796,247.57/90,859.20
  6. Step 6: Final answer
    x = 81,453.46

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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.