Home / 70,346.48-97,078.10-38,515.30

Finding the Fourth Proportional to 70,346.48, 97,078.10 and 38,515.30

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Solution

The fourth proportional to 70,346.48, 97,078.10 and 38,515.30 is: 53,151.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,346.48 : 97,078.10 = 38,515.30 : x
  2. Step 2: Convert to fraction form
    70,346.48/97,078.10 = 38,515.30/x
  3. Step 3: Cross multiply
    70,346.48x = 97,078.10 × 38,515.30
  4. Step 4: Simplify right side
    70,346.48x = 3,738,991,709.66
  5. Step 5: Solve for x
    x = 3,738,991,709.66/70,346.48
  6. Step 6: Final answer
    x = 53,151.09

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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.