Home / 70,406.75-97,161.38-38,575.79

Finding the Fourth Proportional to 70,406.75, 97,161.38 and 38,575.79

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Solution

The fourth proportional to 70,406.75, 97,161.38 and 38,575.79 is: 53,234.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,406.75 : 97,161.38 = 38,575.79 : x
  2. Step 2: Convert to fraction form
    70,406.75/97,161.38 = 38,575.79/x
  3. Step 3: Cross multiply
    70,406.75x = 97,161.38 × 38,575.79
  4. Step 4: Simplify right side
    70,406.75x = 3,748,076,798.11
  5. Step 5: Solve for x
    x = 3,748,076,798.11/70,406.75
  6. Step 6: Final answer
    x = 53,234.62

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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.