Home / 65,139.18-97,708.76-30,059.70

Finding the Fourth Proportional to 65,139.18, 97,708.76 and 30,059.70

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Solution

The fourth proportional to 65,139.18, 97,708.76 and 30,059.70 is: 45,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,139.18 : 97,708.76 = 30,059.70 : x
  2. Step 2: Convert to fraction form
    65,139.18/97,708.76 = 30,059.70/x
  3. Step 3: Cross multiply
    65,139.18x = 97,708.76 × 30,059.70
  4. Step 4: Simplify right side
    65,139.18x = 2,937,096,012.97
  5. Step 5: Solve for x
    x = 2,937,096,012.97/65,139.18
  6. Step 6: Final answer
    x = 45,089.55

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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.