Home / 90,421.23-124,776.30-50,132.64

Finding the Fourth Proportional to 90,421.23, 124,776.30 and 50,132.64

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Solution

The fourth proportional to 90,421.23, 124,776.30 and 50,132.64 is: 69,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,421.23 : 124,776.30 = 50,132.64 : x
  2. Step 2: Convert to fraction form
    90,421.23/124,776.30 = 50,132.64/x
  3. Step 3: Cross multiply
    90,421.23x = 124,776.30 × 50,132.64
  4. Step 4: Simplify right side
    90,421.23x = 6,255,365,328.43
  5. Step 5: Solve for x
    x = 6,255,365,328.43/90,421.23
  6. Step 6: Final answer
    x = 69,180.27

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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.