Home / 69,023.40-103,535.10-45,403.80

Finding the Fourth Proportional to 69,023.40, 103,535.10 and 45,403.80

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Solution

The fourth proportional to 69,023.40, 103,535.10 and 45,403.80 is: 68,105.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,023.40 : 103,535.10 = 45,403.80 : x
  2. Step 2: Convert to fraction form
    69,023.40/103,535.10 = 45,403.80/x
  3. Step 3: Cross multiply
    69,023.40x = 103,535.10 × 45,403.80
  4. Step 4: Simplify right side
    69,023.40x = 4,700,886,973.38
  5. Step 5: Solve for x
    x = 4,700,886,973.38/69,023.40
  6. Step 6: Final answer
    x = 68,105.70

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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.