Home / 70,515.72-97,314.23-38,685.56

Finding the Fourth Proportional to 70,515.72, 97,314.23 and 38,685.56

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Solution

The fourth proportional to 70,515.72, 97,314.23 and 38,685.56 is: 53,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,515.72 : 97,314.23 = 38,685.56 : x
  2. Step 2: Convert to fraction form
    70,515.72/97,314.23 = 38,685.56/x
  3. Step 3: Cross multiply
    70,515.72x = 97,314.23 × 38,685.56
  4. Step 4: Simplify right side
    70,515.72x = 3,764,654,803.52
  5. Step 5: Solve for x
    x = 3,764,654,803.52/70,515.72
  6. Step 6: Final answer
    x = 53,387.45

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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.