Home / 69,070.90-103,683.15-42,805.30

Finding the Fourth Proportional to 69,070.90, 103,683.15 and 42,805.30

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Solution

The fourth proportional to 69,070.90, 103,683.15 and 42,805.30 is: 64,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,070.90 : 103,683.15 = 42,805.30 : x
  2. Step 2: Convert to fraction form
    69,070.90/103,683.15 = 42,805.30/x
  3. Step 3: Cross multiply
    69,070.90x = 103,683.15 × 42,805.30
  4. Step 4: Simplify right side
    69,070.90x = 4,438,188,340.70
  5. Step 5: Solve for x
    x = 4,438,188,340.70/69,070.90
  6. Step 6: Final answer
    x = 64,255.55

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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.