Home / 77,370.38-106,779.96-43,388.04

Finding the Fourth Proportional to 77,370.38, 106,779.96 and 43,388.04

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Solution

The fourth proportional to 77,370.38, 106,779.96 and 43,388.04 is: 59,880.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,370.38 : 106,779.96 = 43,388.04 : x
  2. Step 2: Convert to fraction form
    77,370.38/106,779.96 = 43,388.04/x
  3. Step 3: Cross multiply
    77,370.38x = 106,779.96 × 43,388.04
  4. Step 4: Simplify right side
    77,370.38x = 4,632,973,175.68
  5. Step 5: Solve for x
    x = 4,632,973,175.68/77,370.38
  6. Step 6: Final answer
    x = 59,880.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.