Home / 90,925.31-125,480.81-50,639.06

Finding the Fourth Proportional to 90,925.31, 125,480.81 and 50,639.06

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Solution

The fourth proportional to 90,925.31, 125,480.81 and 50,639.06 is: 69,884.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,925.31 : 125,480.81 = 50,639.06 : x
  2. Step 2: Convert to fraction form
    90,925.31/125,480.81 = 50,639.06/x
  3. Step 3: Cross multiply
    90,925.31x = 125,480.81 × 50,639.06
  4. Step 4: Simplify right side
    90,925.31x = 6,354,230,706.74
  5. Step 5: Solve for x
    x = 6,354,230,706.74/90,925.31
  6. Step 6: Final answer
    x = 69,884.07

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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.