Home / 90,652.02-125,112.78-56,695.20

Finding the Fourth Proportional to 90,652.02, 125,112.78 and 56,695.20

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Solution

The fourth proportional to 90,652.02, 125,112.78 and 56,695.20 is: 78,247.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,652.02 : 125,112.78 = 56,695.20 : x
  2. Step 2: Convert to fraction form
    90,652.02/125,112.78 = 56,695.20/x
  3. Step 3: Cross multiply
    90,652.02x = 125,112.78 × 56,695.20
  4. Step 4: Simplify right side
    90,652.02x = 7,093,294,084.66
  5. Step 5: Solve for x
    x = 7,093,294,084.66/90,652.02
  6. Step 6: Final answer
    x = 78,247.50

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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.