Home / 90,670.44-125,140.05-75,539.10

Finding the Fourth Proportional to 90,670.44, 125,140.05 and 75,539.10

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Solution

The fourth proportional to 90,670.44, 125,140.05 and 75,539.10 is: 104,256.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,670.44 : 125,140.05 = 75,539.10 : x
  2. Step 2: Convert to fraction form
    90,670.44/125,140.05 = 75,539.10/x
  3. Step 3: Cross multiply
    90,670.44x = 125,140.05 × 75,539.10
  4. Step 4: Simplify right side
    90,670.44x = 9,452,966,750.96
  5. Step 5: Solve for x
    x = 9,452,966,750.96/90,670.44
  6. Step 6: Final answer
    x = 104,256.32

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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.