Home / 90,117.64-124,361.05-49,830.52

Finding the Fourth Proportional to 90,117.64, 124,361.05 and 49,830.52

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Solution

The fourth proportional to 90,117.64, 124,361.05 and 49,830.52 is: 68,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,117.64 : 124,361.05 = 49,830.52 : x
  2. Step 2: Convert to fraction form
    90,117.64/124,361.05 = 49,830.52/x
  3. Step 3: Cross multiply
    90,117.64x = 124,361.05 × 49,830.52
  4. Step 4: Simplify right side
    90,117.64x = 6,196,975,789.25
  5. Step 5: Solve for x
    x = 6,196,975,789.25/90,117.64
  6. Step 6: Final answer
    x = 68,765.40

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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.