Home / 70,278.21-96,985.49-38,447.10

Finding the Fourth Proportional to 70,278.21, 96,985.49 and 38,447.10

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Solution

The fourth proportional to 70,278.21, 96,985.49 and 38,447.10 is: 53,057.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,278.21 : 96,985.49 = 38,447.10 : x
  2. Step 2: Convert to fraction form
    70,278.21/96,985.49 = 38,447.10/x
  3. Step 3: Cross multiply
    70,278.21x = 96,985.49 × 38,447.10
  4. Step 4: Simplify right side
    70,278.21x = 3,728,810,640.34
  5. Step 5: Solve for x
    x = 3,728,810,640.34/70,278.21
  6. Step 6: Final answer
    x = 53,057.85

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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.