Home / 90,430.06-124,763.61-54,606.46

Finding the Fourth Proportional to 90,430.06, 124,763.61 and 54,606.46

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Solution

The fourth proportional to 90,430.06, 124,763.61 and 54,606.46 is: 75,338.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,430.06 : 124,763.61 = 54,606.46 : x
  2. Step 2: Convert to fraction form
    90,430.06/124,763.61 = 54,606.46/x
  3. Step 3: Cross multiply
    90,430.06x = 124,763.61 × 54,606.46
  4. Step 4: Simplify right side
    90,430.06x = 6,812,899,078.92
  5. Step 5: Solve for x
    x = 6,812,899,078.92/90,430.06
  6. Step 6: Final answer
    x = 75,338.88

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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.