Home / 69,030.30-103,545.45-19,782.30

Finding the Fourth Proportional to 69,030.30, 103,545.45 and 19,782.30

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Solution

The fourth proportional to 69,030.30, 103,545.45 and 19,782.30 is: 29,673.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,030.30 : 103,545.45 = 19,782.30 : x
  2. Step 2: Convert to fraction form
    69,030.30/103,545.45 = 19,782.30/x
  3. Step 3: Cross multiply
    69,030.30x = 103,545.45 × 19,782.30
  4. Step 4: Simplify right side
    69,030.30x = 2,048,367,155.54
  5. Step 5: Solve for x
    x = 2,048,367,155.54/69,030.30
  6. Step 6: Final answer
    x = 29,673.45

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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.