Home / 69,370.05-104,050.80-42,721.12

Finding the Fourth Proportional to 69,370.05, 104,050.80 and 42,721.12

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Solution

The fourth proportional to 69,370.05, 104,050.80 and 42,721.12 is: 64,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,370.05 : 104,050.80 = 42,721.12 : x
  2. Step 2: Convert to fraction form
    69,370.05/104,050.80 = 42,721.12/x
  3. Step 3: Cross multiply
    69,370.05x = 104,050.80 × 42,721.12
  4. Step 4: Simplify right side
    69,370.05x = 4,445,166,559.57
  5. Step 5: Solve for x
    x = 4,445,166,559.57/69,370.05
  6. Step 6: Final answer
    x = 64,079.05

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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.