Home / 90,364.28-124,707.70-50,077.20

Finding the Fourth Proportional to 90,364.28, 124,707.70 and 50,077.20

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Solution

The fourth proportional to 90,364.28, 124,707.70 and 50,077.20 is: 69,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,364.28 : 124,707.70 = 50,077.20 : x
  2. Step 2: Convert to fraction form
    90,364.28/124,707.70 = 50,077.20/x
  3. Step 3: Cross multiply
    90,364.28x = 124,707.70 × 50,077.20
  4. Step 4: Simplify right side
    90,364.28x = 6,245,012,434.44
  5. Step 5: Solve for x
    x = 6,245,012,434.44/90,364.28
  6. Step 6: Final answer
    x = 69,109.30

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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.