Home / 90,428.50-124,790.83-50,148.21

Finding the Fourth Proportional to 90,428.50, 124,790.83 and 50,148.21

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Solution

The fourth proportional to 90,428.50, 124,790.83 and 50,148.21 is: 69,204.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,428.50 : 124,790.83 = 50,148.21 : x
  2. Step 2: Convert to fraction form
    90,428.50/124,790.83 = 50,148.21/x
  3. Step 3: Cross multiply
    90,428.50x = 124,790.83 × 50,148.21
  4. Step 4: Simplify right side
    90,428.50x = 6,258,037,091.51
  5. Step 5: Solve for x
    x = 6,258,037,091.51/90,428.50
  6. Step 6: Final answer
    x = 69,204.26

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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.