Home / 90,365.28-124,708.32-56,393.88

Finding the Fourth Proportional to 90,365.28, 124,708.32 and 56,393.88

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Solution

The fourth proportional to 90,365.28, 124,708.32 and 56,393.88 is: 77,826.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,365.28 : 124,708.32 = 56,393.88 : x
  2. Step 2: Convert to fraction form
    90,365.28/124,708.32 = 56,393.88/x
  3. Step 3: Cross multiply
    90,365.28x = 124,708.32 × 56,393.88
  4. Step 4: Simplify right side
    90,365.28x = 7,032,786,033.08
  5. Step 5: Solve for x
    x = 7,032,786,033.08/90,365.28
  6. Step 6: Final answer
    x = 77,826.20

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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.