Home / 90,784.93-125,290.77-50,506.28

Finding the Fourth Proportional to 90,784.93, 125,290.77 and 50,506.28

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Solution

The fourth proportional to 90,784.93, 125,290.77 and 50,506.28 is: 69,702.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,784.93 : 125,290.77 = 50,506.28 : x
  2. Step 2: Convert to fraction form
    90,784.93/125,290.77 = 50,506.28/x
  3. Step 3: Cross multiply
    90,784.93x = 125,290.77 × 50,506.28
  4. Step 4: Simplify right side
    90,784.93x = 6,327,970,711.04
  5. Step 5: Solve for x
    x = 6,327,970,711.04/90,784.93
  6. Step 6: Final answer
    x = 69,702.88

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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.