Home / 60,140.29-90,209.46-20,697.76

Finding the Fourth Proportional to 60,140.29, 90,209.46 and 20,697.76

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Solution

The fourth proportional to 60,140.29, 90,209.46 and 20,697.76 is: 31,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,140.29 : 90,209.46 = 20,697.76 : x
  2. Step 2: Convert to fraction form
    60,140.29/90,209.46 = 20,697.76/x
  3. Step 3: Cross multiply
    60,140.29x = 90,209.46 × 20,697.76
  4. Step 4: Simplify right side
    60,140.29x = 1,867,133,752.81
  5. Step 5: Solve for x
    x = 1,867,133,752.81/60,140.29
  6. Step 6: Final answer
    x = 31,046.30

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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.