Home / 90,485.90-124,885.50-50,212.64

Finding the Fourth Proportional to 90,485.90, 124,885.50 and 50,212.64

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Solution

The fourth proportional to 90,485.90, 124,885.50 and 50,212.64 is: 69,301.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,485.90 : 124,885.50 = 50,212.64 : x
  2. Step 2: Convert to fraction form
    90,485.90/124,885.50 = 50,212.64/x
  3. Step 3: Cross multiply
    90,485.90x = 124,885.50 × 50,212.64
  4. Step 4: Simplify right side
    90,485.90x = 6,270,830,652.72
  5. Step 5: Solve for x
    x = 6,270,830,652.72/90,485.90
  6. Step 6: Final answer
    x = 69,301.74

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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.