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Finding the Fourth Proportional to 65,400.57, 90,250.07 and 37,107.81

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Solution

The fourth proportional to 65,400.57, 90,250.07 and 37,107.81 is: 51,207.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,400.57 : 90,250.07 = 37,107.81 : x
  2. Step 2: Convert to fraction form
    65,400.57/90,250.07 = 37,107.81/x
  3. Step 3: Cross multiply
    65,400.57x = 90,250.07 × 37,107.81
  4. Step 4: Simplify right side
    65,400.57x = 3,348,982,264.51
  5. Step 5: Solve for x
    x = 3,348,982,264.51/65,400.57
  6. Step 6: Final answer
    x = 51,207.23

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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.