Home / 69,077.90-103,693.65-42,812.30

Finding the Fourth Proportional to 69,077.90, 103,693.65 and 42,812.30

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Solution

The fourth proportional to 69,077.90, 103,693.65 and 42,812.30 is: 64,266.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,077.90 : 103,693.65 = 42,812.30 : x
  2. Step 2: Convert to fraction form
    69,077.90/103,693.65 = 42,812.30/x
  3. Step 3: Cross multiply
    69,077.90x = 103,693.65 × 42,812.30
  4. Step 4: Simplify right side
    69,077.90x = 4,439,363,651.90
  5. Step 5: Solve for x
    x = 4,439,363,651.90/69,077.90
  6. Step 6: Final answer
    x = 64,266.05

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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.