Home / 72,858.20-100,546.83-42,646.34

Finding the Fourth Proportional to 72,858.20, 100,546.83 and 42,646.34

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Solution

The fourth proportional to 72,858.20, 100,546.83 and 42,646.34 is: 58,853.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,858.20 : 100,546.83 = 42,646.34 : x
  2. Step 2: Convert to fraction form
    72,858.20/100,546.83 = 42,646.34/x
  3. Step 3: Cross multiply
    72,858.20x = 100,546.83 × 42,646.34
  4. Step 4: Simplify right side
    72,858.20x = 4,287,954,298.10
  5. Step 5: Solve for x
    x = 4,287,954,298.10/72,858.20
  6. Step 6: Final answer
    x = 58,853.42

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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.