Home / 70,209.57-96,889.20-38,378.60

Finding the Fourth Proportional to 70,209.57, 96,889.20 and 38,378.60

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Solution

The fourth proportional to 70,209.57, 96,889.20 and 38,378.60 is: 52,962.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,209.57 : 96,889.20 = 38,378.60 : x
  2. Step 2: Convert to fraction form
    70,209.57/96,889.20 = 38,378.60/x
  3. Step 3: Cross multiply
    70,209.57x = 96,889.20 × 38,378.60
  4. Step 4: Simplify right side
    70,209.57x = 3,718,471,366.67
  5. Step 5: Solve for x
    x = 3,718,471,366.67/70,209.57
  6. Step 6: Final answer
    x = 52,962.46

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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.