Home / 90,288.40-124,598.34-50,001.28

Finding the Fourth Proportional to 90,288.40, 124,598.34 and 50,001.28

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Solution

The fourth proportional to 90,288.40, 124,598.34 and 50,001.28 is: 69,001.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,288.40 : 124,598.34 = 50,001.28 : x
  2. Step 2: Convert to fraction form
    90,288.40/124,598.34 = 50,001.28/x
  3. Step 3: Cross multiply
    90,288.40x = 124,598.34 × 50,001.28
  4. Step 4: Simplify right side
    90,288.40x = 6,230,076,485.88
  5. Step 5: Solve for x
    x = 6,230,076,485.88/90,288.40
  6. Step 6: Final answer
    x = 69,001.96

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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.