Home / 70,742.13-97,625.70-38,912.64

Finding the Fourth Proportional to 70,742.13, 97,625.70 and 38,912.64

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Solution

The fourth proportional to 70,742.13, 97,625.70 and 38,912.64 is: 53,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,742.13 : 97,625.70 = 38,912.64 : x
  2. Step 2: Convert to fraction form
    70,742.13/97,625.70 = 38,912.64/x
  3. Step 3: Cross multiply
    70,742.13x = 97,625.70 × 38,912.64
  4. Step 4: Simplify right side
    70,742.13x = 3,798,873,718.85
  5. Step 5: Solve for x
    x = 3,798,873,718.85/70,742.13
  6. Step 6: Final answer
    x = 53,700.30

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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.