Home / 42,995.60-64,535.16-40,628.96

Finding the Fourth Proportional to 42,995.60, 64,535.16 and 40,628.96

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Solution

The fourth proportional to 42,995.60, 64,535.16 and 40,628.96 is: 60,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,995.60 : 64,535.16 = 40,628.96 : x
  2. Step 2: Convert to fraction form
    42,995.60/64,535.16 = 40,628.96/x
  3. Step 3: Cross multiply
    42,995.60x = 64,535.16 × 40,628.96
  4. Step 4: Simplify right side
    42,995.60x = 2,621,996,434.23
  5. Step 5: Solve for x
    x = 2,621,996,434.23/42,995.60
  6. Step 6: Final answer
    x = 60,982.90

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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.