Home / 65,237.40-90,026.09-38,381.64

Finding the Fourth Proportional to 65,237.40, 90,026.09 and 38,381.64

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Solution

The fourth proportional to 65,237.40, 90,026.09 and 38,381.64 is: 52,965.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,237.40 : 90,026.09 = 38,381.64 : x
  2. Step 2: Convert to fraction form
    65,237.40/90,026.09 = 38,381.64/x
  3. Step 3: Cross multiply
    65,237.40x = 90,026.09 × 38,381.64
  4. Step 4: Simplify right side
    65,237.40x = 3,455,348,785.08
  5. Step 5: Solve for x
    x = 3,455,348,785.08/65,237.40
  6. Step 6: Final answer
    x = 52,965.76

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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.