Home / 70,922.13-97,872.75-39,090.30

Finding the Fourth Proportional to 70,922.13, 97,872.75 and 39,090.30

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Solution

The fourth proportional to 70,922.13, 97,872.75 and 39,090.30 is: 53,944.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,922.13 : 97,872.75 = 39,090.30 : x
  2. Step 2: Convert to fraction form
    70,922.13/97,872.75 = 39,090.30/x
  3. Step 3: Cross multiply
    70,922.13x = 97,872.75 × 39,090.30
  4. Step 4: Simplify right side
    70,922.13x = 3,825,875,159.33
  5. Step 5: Solve for x
    x = 3,825,875,159.33/70,922.13
  6. Step 6: Final answer
    x = 53,944.73

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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.