Home / 70,431.48-97,198.09-40,217.06

Finding the Fourth Proportional to 70,431.48, 97,198.09 and 40,217.06

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Solution

The fourth proportional to 70,431.48, 97,198.09 and 40,217.06 is: 55,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,431.48 : 97,198.09 = 40,217.06 : x
  2. Step 2: Convert to fraction form
    70,431.48/97,198.09 = 40,217.06/x
  3. Step 3: Cross multiply
    70,431.48x = 97,198.09 × 40,217.06
  4. Step 4: Simplify right side
    70,431.48x = 3,909,021,417.42
  5. Step 5: Solve for x
    x = 3,909,021,417.42/70,431.48
  6. Step 6: Final answer
    x = 55,501.05

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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.