Home / 90,310.36-124,601.34-58,428.76

Finding the Fourth Proportional to 90,310.36, 124,601.34 and 58,428.76

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Solution

The fourth proportional to 90,310.36, 124,601.34 and 58,428.76 is: 80,614.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,310.36 : 124,601.34 = 58,428.76 : x
  2. Step 2: Convert to fraction form
    90,310.36/124,601.34 = 58,428.76/x
  3. Step 3: Cross multiply
    90,310.36x = 124,601.34 × 58,428.76
  4. Step 4: Simplify right side
    90,310.36x = 7,280,301,790.54
  5. Step 5: Solve for x
    x = 7,280,301,790.54/90,310.36
  6. Step 6: Final answer
    x = 80,614.25

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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.