Home / 65,121.40-97,682.10-38,877.40

Finding the Fourth Proportional to 65,121.40, 97,682.10 and 38,877.40

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Solution

The fourth proportional to 65,121.40, 97,682.10 and 38,877.40 is: 58,316.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,121.40 : 97,682.10 = 38,877.40 : x
  2. Step 2: Convert to fraction form
    65,121.40/97,682.10 = 38,877.40/x
  3. Step 3: Cross multiply
    65,121.40x = 97,682.10 × 38,877.40
  4. Step 4: Simplify right side
    65,121.40x = 3,797,626,074.54
  5. Step 5: Solve for x
    x = 3,797,626,074.54/65,121.40
  6. Step 6: Final answer
    x = 58,316.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.