Home / 90,693.90-125,152.21-50,406.29

Finding the Fourth Proportional to 90,693.90, 125,152.21 and 50,406.29

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Solution

The fourth proportional to 90,693.90, 125,152.21 and 50,406.29 is: 69,557.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,693.90 : 125,152.21 = 50,406.29 : x
  2. Step 2: Convert to fraction form
    90,693.90/125,152.21 = 50,406.29/x
  3. Step 3: Cross multiply
    90,693.90x = 125,152.21 × 50,406.29
  4. Step 4: Simplify right side
    90,693.90x = 6,308,458,463.74
  5. Step 5: Solve for x
    x = 6,308,458,463.74/90,693.90
  6. Step 6: Final answer
    x = 69,557.69

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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.