Home / 65,634.12-90,581.88-40,157.46

Finding the Fourth Proportional to 65,634.12, 90,581.88 and 40,157.46

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Solution

The fourth proportional to 65,634.12, 90,581.88 and 40,157.46 is: 55,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,634.12 : 90,581.88 = 40,157.46 : x
  2. Step 2: Convert to fraction form
    65,634.12/90,581.88 = 40,157.46/x
  3. Step 3: Cross multiply
    65,634.12x = 90,581.88 × 40,157.46
  4. Step 4: Simplify right side
    65,634.12x = 3,637,538,222.82
  5. Step 5: Solve for x
    x = 3,637,538,222.82/65,634.12
  6. Step 6: Final answer
    x = 55,421.45

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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.