Home / 65,030.60-97,545.39-20,660.81

Finding the Fourth Proportional to 65,030.60, 97,545.39 and 20,660.81

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Solution

The fourth proportional to 65,030.60, 97,545.39 and 20,660.81 is: 30,991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,030.60 : 97,545.39 = 20,660.81 : x
  2. Step 2: Convert to fraction form
    65,030.60/97,545.39 = 20,660.81/x
  3. Step 3: Cross multiply
    65,030.60x = 97,545.39 × 20,660.81
  4. Step 4: Simplify right side
    65,030.60x = 2,015,366,769.17
  5. Step 5: Solve for x
    x = 2,015,366,769.17/65,030.60
  6. Step 6: Final answer
    x = 30,991.05

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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.