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Finding the Fourth Proportional to 65,873.20, 90,887.52 and 37,578.28

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Solution

The fourth proportional to 65,873.20, 90,887.52 and 37,578.28 is: 51,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,873.20 : 90,887.52 = 37,578.28 : x
  2. Step 2: Convert to fraction form
    65,873.20/90,887.52 = 37,578.28/x
  3. Step 3: Cross multiply
    65,873.20x = 90,887.52 × 37,578.28
  4. Step 4: Simplify right side
    65,873.20x = 3,415,396,675.07
  5. Step 5: Solve for x
    x = 3,415,396,675.07/65,873.20
  6. Step 6: Final answer
    x = 51,848.05

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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.