Home / 90,818.74-125,311.08-53,085.70

Finding the Fourth Proportional to 90,818.74, 125,311.08 and 53,085.70

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Solution

The fourth proportional to 90,818.74, 125,311.08 and 53,085.70 is: 73,247.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,818.74 : 125,311.08 = 53,085.70 : x
  2. Step 2: Convert to fraction form
    90,818.74/125,311.08 = 53,085.70/x
  3. Step 3: Cross multiply
    90,818.74x = 125,311.08 × 53,085.70
  4. Step 4: Simplify right side
    90,818.74x = 6,652,226,399.56
  5. Step 5: Solve for x
    x = 6,652,226,399.56/90,818.74
  6. Step 6: Final answer
    x = 73,247.29

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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.