Home / 90,758.32-125,228.53-54,951.64

Finding the Fourth Proportional to 90,758.32, 125,228.53 and 54,951.64

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Solution

The fourth proportional to 90,758.32, 125,228.53 and 54,951.64 is: 75,822.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,758.32 : 125,228.53 = 54,951.64 : x
  2. Step 2: Convert to fraction form
    90,758.32/125,228.53 = 54,951.64/x
  3. Step 3: Cross multiply
    90,758.32x = 125,228.53 × 54,951.64
  4. Step 4: Simplify right side
    90,758.32x = 6,881,513,098.29
  5. Step 5: Solve for x
    x = 6,881,513,098.29/90,758.32
  6. Step 6: Final answer
    x = 75,822.39

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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.