Home / 90,301.64-124,630.26-51,539.50

Finding the Fourth Proportional to 90,301.64, 124,630.26 and 51,539.50

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Solution

The fourth proportional to 90,301.64, 124,630.26 and 51,539.50 is: 71,132.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,301.64 : 124,630.26 = 51,539.50 : x
  2. Step 2: Convert to fraction form
    90,301.64/124,630.26 = 51,539.50/x
  3. Step 3: Cross multiply
    90,301.64x = 124,630.26 × 51,539.50
  4. Step 4: Simplify right side
    90,301.64x = 6,423,380,662.12
  5. Step 5: Solve for x
    x = 6,423,380,662.12/90,301.64
  6. Step 6: Final answer
    x = 71,132.49

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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.