Home / 70,451.40-97,222.14-38,620.20

Finding the Fourth Proportional to 70,451.40, 97,222.14 and 38,620.20

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Solution

The fourth proportional to 70,451.40, 97,222.14 and 38,620.20 is: 53,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,451.40 : 97,222.14 = 38,620.20 : x
  2. Step 2: Convert to fraction form
    70,451.40/97,222.14 = 38,620.20/x
  3. Step 3: Cross multiply
    70,451.40x = 97,222.14 × 38,620.20
  4. Step 4: Simplify right side
    70,451.40x = 3,754,738,491.23
  5. Step 5: Solve for x
    x = 3,754,738,491.23/70,451.40
  6. Step 6: Final answer
    x = 53,295.44

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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.