Home / 70,818.28-97,730.09-38,989.33

Finding the Fourth Proportional to 70,818.28, 97,730.09 and 38,989.33

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Solution

The fourth proportional to 70,818.28, 97,730.09 and 38,989.33 is: 53,805.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,818.28 : 97,730.09 = 38,989.33 : x
  2. Step 2: Convert to fraction form
    70,818.28/97,730.09 = 38,989.33/x
  3. Step 3: Cross multiply
    70,818.28x = 97,730.09 × 38,989.33
  4. Step 4: Simplify right side
    70,818.28x = 3,810,430,729.94
  5. Step 5: Solve for x
    x = 3,810,430,729.94/70,818.28
  6. Step 6: Final answer
    x = 53,805.75

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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.