Home / 70,761.10-97,646.79-38,929.18

Finding the Fourth Proportional to 70,761.10, 97,646.79 and 38,929.18

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Solution

The fourth proportional to 70,761.10, 97,646.79 and 38,929.18 is: 53,720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,761.10 : 97,646.79 = 38,929.18 : x
  2. Step 2: Convert to fraction form
    70,761.10/97,646.79 = 38,929.18/x
  3. Step 3: Cross multiply
    70,761.10x = 97,646.79 × 38,929.18
  4. Step 4: Simplify right side
    70,761.10x = 3,801,309,464.33
  5. Step 5: Solve for x
    x = 3,801,309,464.33/70,761.10
  6. Step 6: Final answer
    x = 53,720.33

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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.