Home / 90,215.22-124,497.24-49,931.76

Finding the Fourth Proportional to 90,215.22, 124,497.24 and 49,931.76

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Solution

The fourth proportional to 90,215.22, 124,497.24 and 49,931.76 is: 68,905.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,215.22 : 124,497.24 = 49,931.76 : x
  2. Step 2: Convert to fraction form
    90,215.22/124,497.24 = 49,931.76/x
  3. Step 3: Cross multiply
    90,215.22x = 124,497.24 × 49,931.76
  4. Step 4: Simplify right side
    90,215.22x = 6,216,366,308.34
  5. Step 5: Solve for x
    x = 6,216,366,308.34/90,215.22
  6. Step 6: Final answer
    x = 68,905.96

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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.