Home / 90,683.96-125,132.60-50,406.12

Finding the Fourth Proportional to 90,683.96, 125,132.60 and 50,406.12

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Solution

The fourth proportional to 90,683.96, 125,132.60 and 50,406.12 is: 69,554.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,683.96 : 125,132.60 = 50,406.12 : x
  2. Step 2: Convert to fraction form
    90,683.96/125,132.60 = 50,406.12/x
  3. Step 3: Cross multiply
    90,683.96x = 125,132.60 × 50,406.12
  4. Step 4: Simplify right side
    90,683.96x = 6,307,448,851.51
  5. Step 5: Solve for x
    x = 6,307,448,851.51/90,683.96
  6. Step 6: Final answer
    x = 69,554.18

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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.