Home / 78,303.11-108,059.08-42,493.43

Finding the Fourth Proportional to 78,303.11, 108,059.08 and 42,493.43

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Solution

The fourth proportional to 78,303.11, 108,059.08 and 42,493.43 is: 58,641.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,303.11 : 108,059.08 = 42,493.43 : x
  2. Step 2: Convert to fraction form
    78,303.11/108,059.08 = 42,493.43/x
  3. Step 3: Cross multiply
    78,303.11x = 108,059.08 × 42,493.43
  4. Step 4: Simplify right side
    78,303.11x = 4,591,800,305.32
  5. Step 5: Solve for x
    x = 4,591,800,305.32/78,303.11
  6. Step 6: Final answer
    x = 58,641.36

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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.