Home / 90,342.64-124,735.08-69,084.88

Finding the Fourth Proportional to 90,342.64, 124,735.08 and 69,084.88

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Solution

The fourth proportional to 90,342.64, 124,735.08 and 69,084.88 is: 95,384.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,342.64 : 124,735.08 = 69,084.88 : x
  2. Step 2: Convert to fraction form
    90,342.64/124,735.08 = 69,084.88/x
  3. Step 3: Cross multiply
    90,342.64x = 124,735.08 × 69,084.88
  4. Step 4: Simplify right side
    90,342.64x = 8,617,308,033.59
  5. Step 5: Solve for x
    x = 8,617,308,033.59/90,342.64
  6. Step 6: Final answer
    x = 95,384.73

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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.