Home / 78,858.26-108,820.23-43,041.32

Finding the Fourth Proportional to 78,858.26, 108,820.23 and 43,041.32

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Solution

The fourth proportional to 78,858.26, 108,820.23 and 43,041.32 is: 59,394.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,858.26 : 108,820.23 = 43,041.32 : x
  2. Step 2: Convert to fraction form
    78,858.26/108,820.23 = 43,041.32/x
  3. Step 3: Cross multiply
    78,858.26x = 108,820.23 × 43,041.32
  4. Step 4: Simplify right side
    78,858.26x = 4,683,766,341.90
  5. Step 5: Solve for x
    x = 4,683,766,341.90/78,858.26
  6. Step 6: Final answer
    x = 59,394.75

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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.