Home / 70,515.20-97,310.24-38,684.40

Finding the Fourth Proportional to 70,515.20, 97,310.24 and 38,684.40

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Solution

The fourth proportional to 70,515.20, 97,310.24 and 38,684.40 is: 53,384.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,515.20 : 97,310.24 = 38,684.40 : x
  2. Step 2: Convert to fraction form
    70,515.20/97,310.24 = 38,684.40/x
  3. Step 3: Cross multiply
    70,515.20x = 97,310.24 × 38,684.40
  4. Step 4: Simplify right side
    70,515.20x = 3,764,388,248.26
  5. Step 5: Solve for x
    x = 3,764,388,248.26/70,515.20
  6. Step 6: Final answer
    x = 53,384.07

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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.