Home / 90,946.71-125,508.02-55,138.23

Finding the Fourth Proportional to 90,946.71, 125,508.02 and 55,138.23

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Solution

The fourth proportional to 90,946.71, 125,508.02 and 55,138.23 is: 76,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,946.71 : 125,508.02 = 55,138.23 : x
  2. Step 2: Convert to fraction form
    90,946.71/125,508.02 = 55,138.23/x
  3. Step 3: Cross multiply
    90,946.71x = 125,508.02 × 55,138.23
  4. Step 4: Simplify right side
    90,946.71x = 6,920,289,797.91
  5. Step 5: Solve for x
    x = 6,920,289,797.91/90,946.71
  6. Step 6: Final answer
    x = 76,091.70

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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.